390790 has 8 divisors (see below), whose sum is σ = 703440. Its totient is φ = 156312.

The previous prime is 390781. The next prime is 390791. The reversal of 390790 is 97093.

390790 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390791) 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 3 ways as a sum of consecutive naturals, for example, 19530 + ... + 19549.

It is an arithmetic number, because the mean of its divisors is an integer number (87930).

2³⁹⁰⁷⁹⁰ is an apocalyptic number.

390790 is a deficient number, since it is larger than the sum of its proper divisors (312650).

390790 is a wasteful number, since it uses less digits than its factorization.

390790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39086.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 390790 is about 625.1319860637. The cubic root of 390790 is about 73.1107345489.

The spelling of 390790 in words is "three hundred ninety thousand, seven hundred ninety".