396433824 has 24 divisors (see below), whose sum is σ = 1040639040. Its totient is φ = 132144576.

The previous prime is 396433811. The next prime is 396433847. The reversal of 396433824 is 428334693.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×396433824² = 314319553622525952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064664 + ... + 2064855.

It is an arithmetic number, because the mean of its divisors is an integer number (43359960).

Almost surely, 2^396433824 is an apocalyptic number.

It is an amenable number.

396433824 is an abundant number, since it is smaller than the sum of its proper divisors (644205216).

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

396433824 is a wasteful number, since it uses less digits than its factorization.

396433824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129532 (or 4129524 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 396433824 is about 19910.6459965517. The cubic root of 396433824 is about 734.6101092858.

The spelling of 396433824 in words is "three hundred ninety-six million, four hundred thirty-three thousand, eight hundred twenty-four".