390422160 has 80 divisors (see below), whose sum is σ = 1344794880. Its totient is φ = 104112000.

The previous prime is 390422159. The next prime is 390422233. The reversal of 390422160 is 61224093.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88216 + ... + 92535.

It is an arithmetic number, because the mean of its divisors is an integer number (16809936).

Almost surely, 2^390422160 is an apocalyptic number.

390422160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390422160 is an abundant number, since it is smaller than the sum of its proper divisors (954372720).

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

390422160 is a wasteful number, since it uses less digits than its factorization.

390422160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180773 (or 180761 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 390422160 is about 19759.1032185168. The cubic root of 390422160 is about 730.8778829908.

The spelling of 390422160 in words is "three hundred ninety million, four hundred twenty-two thousand, one hundred sixty".