22204290 has 16 divisors (see below), whose sum is σ = 53290368. Its totient is φ = 5921136.

The previous prime is 22204253. The next prime is 22204307. The reversal of 22204290 is 9240222.

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, 370042 + ... + 370101.

It is an arithmetic number, because the mean of its divisors is an integer number (3330648).

Almost surely, 2^22204290 is an apocalyptic number.

22204290 is an abundant number, since it is smaller than the sum of its proper divisors (31086078).

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

22204290 is a wasteful number, since it uses less digits than its factorization.

22204290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740153.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22204290 is about 4712.1428246606. The cubic root of 22204290 is about 281.0685783069.

The spelling of 22204290 in words is "twenty-two million, two hundred four thousand, two hundred ninety".