396756432 has 60 divisors (see below), whose sum is σ = 1112981220. Its totient is φ = 131940864.

The previous prime is 396756419. The next prime is 396756473. The reversal of 396756432 is 234657693.

It can be written as a sum of positive squares in 2 ways, for example, as 358117776 + 38638656 = 18924^2 + 6216^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62794 + ... + 68822.

It is an arithmetic number, because the mean of its divisors is an integer number (18549687).

Almost surely, 2^396756432 is an apocalyptic number.

It is an amenable number.

396756432 is an abundant number, since it is smaller than the sum of its proper divisors (716224788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396756432 is a wasteful number, since it uses less digits than its factorization.

396756432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6491 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 396756432 is about 19918.7457436456. The cubic root of 396756432 is about 734.8093244107.

The spelling of 396756432 in words is "three hundred ninety-six million, seven hundred fifty-six thousand, four hundred thirty-two".