390650188 has 12 divisors (see below), whose sum is σ = 684757360. Its totient is φ = 195005232.

The previous prime is 390650179. The next prime is 390650219. The reversal of 390650188 is 881056093.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 390650188.

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, 77208 + ... + 82111.

Almost surely, 2^390650188 is an apocalyptic number.

It is an amenable number.

390650188 is a deficient number, since it is larger than the sum of its proper divisors (294107172).

390650188 is a wasteful number, since it uses less digits than its factorization.

390650188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159936 (or 159934 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 390650188 is about 19764.8725773783. The cubic root of 390650188 is about 731.0201462494.

The spelling of 390650188 in words is "three hundred ninety million, six hundred fifty thousand, one hundred eighty-eight".