22020590 has 16 divisors (see below), whose sum is σ = 39694320. Its totient is φ = 8795520.

The previous prime is 22020569. The next prime is 22020611. The reversal of 22020590 is 9502022.

It is an interprime number because it is at equal distance from previous prime (22020569) and next prime (22020611).

It is a Curzon number.

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, 9110 + ... + 11270.

It is an arithmetic number, because the mean of its divisors is an integer number (2480895).

Almost surely, 2^22020590 is an apocalyptic number.

22020590 is a deficient number, since it is larger than the sum of its proper divisors (17673730).

22020590 is a wasteful number, since it uses less digits than its factorization.

22020590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22020590 is about 4692.6101478815. The cubic root of 22020590 is about 280.2913209449.

The spelling of 22020590 in words is "twenty-two million, twenty thousand, five hundred ninety".