390761290 has 16 divisors (see below), whose sum is σ = 718336512. Its totient is φ = 152978704.

The previous prime is 390761279. The next prime is 390761311. The reversal of 390761290 is 92167093.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415234 + ... + 416173.

It is an arithmetic number, because the mean of its divisors is an integer number (44896032).

Almost surely, 2^390761290 is an apocalyptic number.

390761290 is a deficient number, since it is larger than the sum of its proper divisors (327575222).

390761290 is a wasteful number, since it uses less digits than its factorization.

390761290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831461.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 390761290 is about 19767.6829699386. The cubic root of 390761290 is about 731.0894410682.

The spelling of 390761290 in words is "three hundred ninety million, seven hundred sixty-one thousand, two hundred ninety".