396248836 has 27 divisors (see below), whose sum is σ = 715342719. Its totient is φ = 192053088.

The previous prime is 396248833. The next prime is 396248849. The reversal of 396248836 is 638842693.

It is a happy number.

The square root of 396248836 is 19906.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1988100 + 394260736 = 1410^2 + 19856^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 396248836.

It is not an unprimeable number, because it can be changed into a prime (396248833) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1472910 + ... + 1473178.

Almost surely, 2^396248836 is an apocalyptic number.

396248836 is the 19906-th square number.

It is an amenable number.

396248836 is a deficient number, since it is larger than the sum of its proper divisors (319093883).

396248836 is an equidigital number, since it uses as much as digits as its factorization.

396248836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 308 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The cubic root of 396248836 is about 734.4958277508.

Multiplying 396248836 by its sum of digits (49), we get a square (19416192964 = 139342²).

The spelling of 396248836 in words is "three hundred ninety-six million, two hundred forty-eight thousand, eight hundred thirty-six".