396545956 has 12 divisors (see below), whose sum is σ = 708720768. Its totient is φ = 194054312.

The previous prime is 396545953. The next prime is 396545969. The reversal of 396545956 is 659545693.

It is not an unprimeable number, because it can be changed into a prime (396545953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054456 + ... + 1054831.

It is an arithmetic number, because the mean of its divisors is an integer number (59060064).

Almost surely, 2^396545956 is an apocalyptic number.

It is an amenable number.

396545956 is a deficient number, since it is larger than the sum of its proper divisors (312174812).

396545956 is a wasteful number, since it uses less digits than its factorization.

396545956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109338 (or 2109336 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 52.

The square root of 396545956 is about 19913.4616779705. The cubic root of 396545956 is about 734.6793646743.

The spelling of 396545956 in words is "three hundred ninety-six million, five hundred forty-five thousand, nine hundred fifty-six".