390425290 has 16 divisors (see below), whose sum is σ = 703248768. Its totient is φ = 156062736.

The previous prime is 390425279. The next prime is 390425303. The reversal of 390425290 is 92524093.

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, 2779 + ... + 28081.

It is an arithmetic number, because the mean of its divisors is an integer number (43953048).

Almost surely, 2^390425290 is an apocalyptic number.

390425290 is a deficient number, since it is larger than the sum of its proper divisors (312823478).

390425290 is a wasteful number, since it uses less digits than its factorization.

390425290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26853.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 390425290 is about 19759.1824223575. The cubic root of 390425290 is about 730.8798361259.

The spelling of 390425290 in words is "three hundred ninety million, four hundred twenty-five thousand, two hundred ninety".