390196872 has 64 divisors (see below), whose sum is σ = 1167264000. Its totient is φ = 120059712.

The previous prime is 390196853. The next prime is 390196889. The reversal of 390196872 is 278691093.

390196872 is a `hidden beast` number, since 390 + 196 + 8 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66672 + ... + 72287.

It is an arithmetic number, because the mean of its divisors is an integer number (18238500).

Almost surely, 2^390196872 is an apocalyptic number.

It is an amenable number.

390196872 is an abundant number, since it is smaller than the sum of its proper divisors (777067128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390196872 is a wasteful number, since it uses less digits than its factorization.

390196872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138987 (or 138977 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 390196872 is about 19753.4015298632. The cubic root of 390196872 is about 730.7372747682.

The spelling of 390196872 in words is "three hundred ninety million, one hundred ninety-six thousand, eight hundred seventy-two".