390354720 has 96 divisors (see below), whose sum is σ = 1405289088. Its totient is φ = 89223168.

The previous prime is 390354719. The next prime is 390354737. The reversal of 390354720 is 27453093.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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, 54729 + ... + 61448.

It is an arithmetic number, because the mean of its divisors is an integer number (14638428).

Almost surely, 2^390354720 is an apocalyptic number.

390354720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390354720 is an abundant number, since it is smaller than the sum of its proper divisors (1014934368).

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

390354720 is a wasteful number, since it uses less digits than its factorization.

390354720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116202 (or 116194 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 390354720 is about 19757.3965896319. The cubic root of 390354720 is about 730.8357975699.

The spelling of 390354720 in words is "three hundred ninety million, three hundred fifty-four thousand, seven hundred twenty".