390774860 has 48 divisors (see below), whose sum is σ = 939242304. Its totient is φ = 133782528.

The previous prime is 390774847. The next prime is 390774889. The reversal of 390774860 is 68477093.

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, 118352 + ... + 121608.

It is an arithmetic number, because the mean of its divisors is an integer number (19567548).

Almost surely, 2^390774860 is an apocalyptic number.

It is an amenable number.

390774860 is an abundant number, since it is smaller than the sum of its proper divisors (548467444).

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

390774860 is a wasteful number, since it uses less digits than its factorization.

390774860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4128 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 390774860 is about 19768.0262039486. The cubic root of 390774860 is about 731.0979038383.

The spelling of 390774860 in words is "three hundred ninety million, seven hundred seventy-four thousand, eight hundred sixty".