22532990 has 16 divisors (see below), whose sum is σ = 42945552. Its totient is φ = 8482944.

The previous prime is 22532987. The next prime is 22533011. The reversal of 22532990 is 9923522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66104 + ... + 66443.

It is an arithmetic number, because the mean of its divisors is an integer number (2684097).

Almost surely, 2^22532990 is an apocalyptic number.

22532990 is a deficient number, since it is larger than the sum of its proper divisors (20412562).

22532990 is a wasteful number, since it uses less digits than its factorization.

22532990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132571.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 22532990 is about 4746.8926678407. The cubic root of 22532990 is about 282.4487180781.

The spelling of 22532990 in words is "twenty-two million, five hundred thirty-two thousand, nine hundred ninety".