22375890 has 24 divisors (see below), whose sum is σ = 58177548. Its totient is φ = 5966880.

The previous prime is 22375889. The next prime is 22375909. The reversal of 22375890 is 9857322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22268961 + 106929 = 4719^2 + 327^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124221 + ... + 124400.

Almost surely, 2^22375890 is an apocalyptic number.

22375890 is an abundant number, since it is smaller than the sum of its proper divisors (35801658).

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

22375890 is a wasteful number, since it uses less digits than its factorization.

22375890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248634 (or 248631 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 22375890 is about 4730.3160570939. The cubic root of 22375890 is about 281.7907758485.

The spelling of 22375890 in words is "twenty-two million, three hundred seventy-five thousand, eight hundred ninety".