390022836 has 48 divisors (see below), whose sum is σ = 1042890240. Its totient is φ = 111132000.

The previous prime is 390022817. The next prime is 390022849. The reversal of 390022836 is 638220093.

It is a junction number, because it is equal to n+sod(n) for n = 390022797 and 390022806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25711 + ... + 37961.

It is an arithmetic number, because the mean of its divisors is an integer number (21726880).

Almost surely, 2^390022836 is an apocalyptic number.

It is an amenable number.

390022836 is an abundant number, since it is smaller than the sum of its proper divisors (652867404).

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

390022836 is a wasteful number, since it uses less digits than its factorization.

390022836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12644 (or 12642 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 390022836 is about 19748.9958225729. The cubic root of 390022836 is about 730.6286172215.

The spelling of 390022836 in words is "three hundred ninety million, twenty-two thousand, eight hundred thirty-six".