Is 408 a deficient number and what is its deficiency?

Is 408 a deficient number?

Here we will explain and calculate if 408 is a deficient number and its deficiency if applicable.

408 is a deficient number if the sum of its proper divisors is less than 408.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 4 + 6 + 8 + 12 + 17 + 24 + 34 + 51 + 68 + 102 + 136 + 204 = 672.

672 is not less than 408. Therefore, 408 is not a deficient number.

The deficiency of 408 is 408 minus the sum of its proper divisors. Thus, the deficiency of 408 is 408 - 672 = No Deficiency

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