Is 1378 a deficient number and what is its deficiency?

Is 1378 a deficient number?

Here we will explain and calculate if 1378 is a deficient number and its deficiency if applicable.

1378 is a deficient number if the sum of its proper divisors is less than 1378.

The sum of its proper divisors is calculated as follows: 1 + 2 + 13 + 26 + 53 + 106 + 689 = 890.

890 is less than 1378. Therefore, 1378 is a deficient number.

The deficiency of 1378 is 1378 minus the sum of its proper divisors. Thus, the deficiency of 1378 is 1378 - 890 = 488

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