396208864 has 24 divisors (see below), whose sum is σ = 787615920. Its totient is φ = 196179456.

The previous prime is 396208831. The next prime is 396208873. The reversal of 396208864 is 468802693.

It is a happy number.

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, 56809 + ... + 63400.

It is an arithmetic number, because the mean of its divisors is an integer number (32817330).

Almost surely, 2^396208864 is an apocalyptic number.

It is an amenable number.

396208864 is a deficient number, since it is larger than the sum of its proper divisors (391407056).

396208864 is a wasteful number, since it uses less digits than its factorization.

396208864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120322 (or 120314 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 396208864 is about 19904.9959557896. The cubic root of 396208864 is about 734.4711292517.

It can be divided in two parts, 39620 and 8864, that added together give a palindrome (48484).

The spelling of 396208864 in words is "three hundred ninety-six million, two hundred eight thousand, eight hundred sixty-four".