390090 has 16 divisors (see below), whose sum is σ = 936288. Its totient is φ = 104016.

The previous prime is 390083. The next prime is 390097. The reversal of 390090 is 90093.

390090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (390083) and next prime (390097).

It is not an unprimeable number, because it can be changed into a prime (390097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6472 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (58518).

2³⁹⁰⁰⁹⁰ is an apocalyptic number.

390090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390090 is an abundant number, since it is smaller than the sum of its proper divisors (546198).

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

390090 is a wasteful number, since it uses less digits than its factorization.

390090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13013.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 390090 is about 624.5718533524. The cubic root of 390090 is about 73.0670554188.

The spelling of 390090 in words is "three hundred ninety thousand, ninety".