390673722 has 16 divisors (see below), whose sum is σ = 815319360. Its totient is φ = 124562592.

The previous prime is 390673691. The next prime is 390673733. The reversal of 390673722 is 227376093.

It is a super-2 number, since 2×390673722² = 305251914122666568, which contains 22 as substring.

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, 1415347 + ... + 1415622.

It is an arithmetic number, because the mean of its divisors is an integer number (50957460).

Almost surely, 2^390673722 is an apocalyptic number.

390673722 is an abundant number, since it is smaller than the sum of its proper divisors (424645638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390673722 is a wasteful number, since it uses less digits than its factorization.

390673722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830997.

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 390673722 is about 19765.4679175576. The cubic root of 390673722 is about 731.0348256081.

The spelling of 390673722 in words is "three hundred ninety million, six hundred seventy-three thousand, seven hundred twenty-two".