22901090 has 16 divisors (see below), whose sum is σ = 41281272. Its totient is φ = 9147264.

The previous prime is 22901089. The next prime is 22901093. The reversal of 22901090 is 9010922.

It can be written as a sum of positive squares in 4 ways, for example, as 21187609 + 1713481 = 4603^2 + 1309^2 .

It is not an unprimeable number, because it can be changed into a prime (22901093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8822 + ... + 11118.

Almost surely, 2^22901090 is an apocalyptic number.

22901090 is a deficient number, since it is larger than the sum of its proper divisors (18380182).

22901090 is a wasteful number, since it uses less digits than its factorization.

22901090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 22901090 is about 4785.5083324554. The cubic root of 22901090 is about 283.9784500609.

It can be divided in two parts, 2 and 2901090, that added together give a palindrome (2901092).

The spelling of 22901090 in words is "twenty-two million, nine hundred one thousand, ninety".