390858 has 16 divisors (see below), whose sum is σ = 842016. Its totient is φ = 120240.

The previous prime is 390851. The next prime is 390869. The reversal of 390858 is 858093.

390858 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (390851) 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, 2428 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (52626).

2³⁹⁰⁸⁵⁸ is an apocalyptic number.

390858 is an abundant number, since it is smaller than the sum of its proper divisors (451158).

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

390858 is a wasteful number, since it uses less digits than its factorization.

390858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 390858 is about 625.1863722123. The cubic root of 390858 is about 73.1149748840.

It can be divided in two parts, 39085 and 8, that added together give a palindrome (39093).

The spelling of 390858 in words is "three hundred ninety thousand, eight hundred fifty-eight".