390090432 has 56 divisors (see below), whose sum is σ = 1092836016. Its totient is φ = 122380288.

The previous prime is 390090431. The next prime is 390090433. The reversal of 390090432 is 234090093.

It is an interprime number because it is at equal distance from previous prime (390090431) and next prime (390090433).

It is a self number, because there is not a number n which added to its sum of digits gives 390090432.

It is not an unprimeable number, because it can be changed into a prime (390090431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56493 + ... + 63020.

Almost surely, 2^390090432 is an apocalyptic number.

390090432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

390090432 is an abundant number, since it is smaller than the sum of its proper divisors (702745584).

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

390090432 is a wasteful number, since it uses less digits than its factorization.

390090432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119545 (or 119535 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 390090432 is about 19750.7071265816. The cubic root of 390090432 is about 730.6708239118.

The spelling of 390090432 in words is "three hundred ninety million, ninety thousand, four hundred thirty-two".