396508172 has 12 divisors (see below), whose sum is σ = 701686440. Its totient is φ = 196026336.

The previous prime is 396508163. The next prime is 396508183. The reversal of 396508172 is 271805693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556538 + ... + 557249.

It is an arithmetic number, because the mean of its divisors is an integer number (58473870).

Almost surely, 2^396508172 is an apocalyptic number.

It is an amenable number.

396508172 is a deficient number, since it is larger than the sum of its proper divisors (305178268).

396508172 is a wasteful number, since it uses less digits than its factorization.

396508172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113880 (or 1113878 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 396508172 is about 19912.5129504038. The cubic root of 396508172 is about 734.6560298364.

The spelling of 396508172 in words is "three hundred ninety-six million, five hundred eight thousand, one hundred seventy-two".