396638804 has 12 divisors (see below), whose sum is σ = 694546944. Its totient is φ = 198196824.

The previous prime is 396638791. The next prime is 396638807. The reversal of 396638804 is 408836693.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396638807) 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, 23162 + ... + 36465.

It is an arithmetic number, because the mean of its divisors is an integer number (57878912).

Almost surely, 2^396638804 is an apocalyptic number.

It is an amenable number.

396638804 is a deficient number, since it is larger than the sum of its proper divisors (297908140).

396638804 is a wasteful number, since it uses less digits than its factorization.

396638804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61294 (or 61292 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 396638804 is about 19915.7928288080. The cubic root of 396638804 is about 734.7366999259.

The spelling of 396638804 in words is "three hundred ninety-six million, six hundred thirty-eight thousand, eight hundred four".