22522990 has 16 divisors (see below), whose sum is σ = 46333152. Its totient is φ = 7722144.

The previous prime is 22522987. The next prime is 22522991. The reversal of 22522990 is 9922522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22522991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160809 + ... + 160948.

It is an arithmetic number, because the mean of its divisors is an integer number (2895822).

Almost surely, 2^22522990 is an apocalyptic number.

22522990 is an abundant number, since it is smaller than the sum of its proper divisors (23810162).

22522990 is a wasteful number, since it uses less digits than its factorization.

22522990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321771.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 22522990 is about 4745.8392303153. The cubic root of 22522990 is about 282.4069289041.

The spelling of 22522990 in words is "twenty-two million, five hundred twenty-two thousand, nine hundred ninety".