22475890 has 16 divisors (see below), whose sum is σ = 40533120. Its totient is φ = 8973360.

The previous prime is 22475857. The next prime is 22475891. The reversal of 22475890 is 9857422.

It is not an unprimeable number, because it can be changed into a prime (22475891) 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, 4375 + ... + 8005.

It is an arithmetic number, because the mean of its divisors is an integer number (2533320).

Almost surely, 2^22475890 is an apocalyptic number.

22475890 is a deficient number, since it is larger than the sum of its proper divisors (18057230).

22475890 is a wasteful number, since it uses less digits than its factorization.

22475890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 22475890 is about 4740.8743919239. The cubic root of 22475890 is about 282.2099353868.

The spelling of 22475890 in words is "twenty-two million, four hundred seventy-five thousand, eight hundred ninety".