390434422 has 16 divisors (see below), whose sum is σ = 669601440. Its totient is φ = 167257728.

The previous prime is 390434377. The next prime is 390434437. The reversal of 390434422 is 224434093.

It is a congruent number.

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, 40704 + ... + 49372.

It is an arithmetic number, because the mean of its divisors is an integer number (41850090).

Almost surely, 2^390434422 is an apocalyptic number.

390434422 is a deficient number, since it is larger than the sum of its proper divisors (279167018).

390434422 is a wasteful number, since it uses less digits than its factorization.

390434422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11895.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 390434422 is about 19759.4135034418. The cubic root of 390434422 is about 730.8855344783.

The spelling of 390434422 in words is "three hundred ninety million, four hundred thirty-four thousand, four hundred twenty-two".