22090858 has 4 divisors (see below), whose sum is σ = 33136290. Its totient is φ = 11045428.

The previous prime is 22090843. The next prime is 22090867. The reversal of 22090858 is 85809022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18861649 + 3229209 = 4343^2 + 1797^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5522713 + ... + 5522716.

Almost surely, 2^22090858 is an apocalyptic number.

22090858 is a deficient number, since it is larger than the sum of its proper divisors (11045432).

22090858 is a wasteful number, since it uses less digits than its factorization.

22090858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045431.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 22090858 is about 4700.0912757094. The cubic root of 22090858 is about 280.5891421818.

The spelling of 22090858 in words is "twenty-two million, ninety thousand, eight hundred fifty-eight".