390576988 has 36 divisors (see below), whose sum is σ = 725107320. Its totient is φ = 183863680.

The previous prime is 390576919. The next prime is 390576997. The reversal of 390576988 is 889675093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193995 + ... + 195997.

It is an arithmetic number, because the mean of its divisors is an integer number (20141870).

Almost surely, 2^390576988 is an apocalyptic number.

It is an amenable number.

390576988 is a deficient number, since it is larger than the sum of its proper divisors (334530332).

390576988 is a wasteful number, since it uses less digits than its factorization.

390576988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 390576988 is about 19763.0207205275. The cubic root of 390576988 is about 730.9744838990.

The spelling of 390576988 in words is "three hundred ninety million, five hundred seventy-six thousand, nine hundred eighty-eight".