Is 426 a deficient number and what is its deficiency?

Is 426 a deficient number?

Here we will explain and calculate if 426 is a deficient number and its deficiency if applicable.

426 is a deficient number if the sum of its proper divisors is less than 426.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 6 + 71 + 142 + 213 = 438.

438 is not less than 426. Therefore, 426 is not a deficient number.

The deficiency of 426 is 426 minus the sum of its proper divisors. Thus, the deficiency of 426 is 426 - 438 = No Deficiency

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