22790 has 16 divisors (see below), whose sum is σ = 42768. Its totient is φ = 8736.

The previous prime is 22787. The next prime is 22807. The reversal of 22790 is 9722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 456.

It is an arithmetic number, because the mean of its divisors is an integer number (2673).

2²²⁷⁹⁰ is an apocalyptic number.

22790 is a deficient number, since it is larger than the sum of its proper divisors (19978).

22790 is a wasteful number, since it uses less digits than its factorization.

22790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 22790 is about 150.9635717648. The cubic root of 22790 is about 28.3518525603.

The spelling of 22790 in words is "twenty-two thousand, seven hundred ninety".