396247924 has 12 divisors (see below), whose sum is σ = 709560544. Its totient is φ = 193516344.

The previous prime is 396247919. The next prime is 396247991. The reversal of 396247924 is 429742693.

It is a congruent number.

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, 1151712 + ... + 1152055.

Almost surely, 2^396247924 is an apocalyptic number.

It is an amenable number.

396247924 is a deficient number, since it is larger than the sum of its proper divisors (313312620).

396247924 is a wasteful number, since it uses less digits than its factorization.

396247924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303814 (or 2303812 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 396247924 is about 19905.9770923208. The cubic root of 396247924 is about 734.4952642490.

The spelling of 396247924 in words is "three hundred ninety-six million, two hundred forty-seven thousand, nine hundred twenty-four".