390980902 has 8 divisors (see below), whose sum is σ = 631584576. Its totient is φ = 180452712.

The previous prime is 390980899. The next prime is 390980939. The reversal of 390980902 is 209089093.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 7518838 + ... + 7518889.

It is an arithmetic number, because the mean of its divisors is an integer number (78948072).

Almost surely, 2^390980902 is an apocalyptic number.

390980902 is a deficient number, since it is larger than the sum of its proper divisors (240603674).

390980902 is a wasteful number, since it uses less digits than its factorization.

390980902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15037742.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 390980902 is about 19773.2370137011. The cubic root of 390980902 is about 731.2263754318.

The spelling of 390980902 in words is "three hundred ninety million, nine hundred eighty thousand, nine hundred two".