396487744 has 63 divisors (see below), whose sum is σ = 836756391. Its totient is φ = 186376320.

The previous prime is 396487699. The next prime is 396487769. The reversal of 396487744 is 447784693.

The square root of 396487744 is 19912.

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

It is a super-2 number, since 2×396487744² = 314405062284419072, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396487691 and 396487700.

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 8 ways as a sum of consecutive naturals, for example, 3026559 + ... + 3026689.

Almost surely, 2^396487744 is an apocalyptic number.

396487744 is the 19912-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396487744

396487744 is an abundant number, since it is smaller than the sum of its proper divisors (440268647).

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

396487744 is an equidigital number, since it uses as much as digits as its factorization.

396487744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 152 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The cubic root of 396487744 is about 734.6434131892.

The spelling of 396487744 in words is "three hundred ninety-six million, four hundred eighty-seven thousand, seven hundred forty-four".