390822 has 16 divisors (see below), whose sum is σ = 797040. Its totient is φ = 127712.

The previous prime is 390821. The next prime is 390829. The reversal of 390822 is 228093.

It is a junction number, because it is equal to n+sod(n) for n = 390792 and 390801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390821) 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, 297 + ... + 932.

It is an arithmetic number, because the mean of its divisors is an integer number (49815).

2³⁹⁰⁸²² is an apocalyptic number.

390822 is an abundant number, since it is smaller than the sum of its proper divisors (406218).

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

390822 is a wasteful number, since it uses less digits than its factorization.

390822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 390822 is about 625.1575801348. The cubic root of 390822 is about 73.1127300620.

The spelling of 390822 in words is "three hundred ninety thousand, eight hundred twenty-two".