22990566 has 16 divisors (see below), whose sum is σ = 46049904. Its totient is φ = 7652064.

The previous prime is 22990559. The next prime is 22990603. The reversal of 22990566 is 66509922.

It is a super-2 number, since 2×22990566² = 1057132250000712, which contains 22 as substring.

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, 2160 + ... + 7116.

It is an arithmetic number, because the mean of its divisors is an integer number (2878119).

Almost surely, 2^22990566 is an apocalyptic number.

22990566 is an abundant number, since it is smaller than the sum of its proper divisors (23059338).

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

22990566 is a wasteful number, since it uses less digits than its factorization.

22990566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 22990566 is about 4794.8478599430. The cubic root of 22990566 is about 284.3478099995.

The spelling of 22990566 in words is "twenty-two million, nine hundred ninety thousand, five hundred sixty-six".