22522690 has 16 divisors (see below), whose sum is σ = 41097528. Its totient is φ = 8885376.

The previous prime is 22522679. The next prime is 22522693. The reversal of 22522690 is 9622522.

It can be written as a sum of positive squares in 4 ways, for example, as 14130081 + 8392609 = 3759^2 + 2897^2 .

It is a super-2 number, since 2×22522690² = 1014543129672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22522693) 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, 14697 + ... + 16156.

Almost surely, 2^22522690 is an apocalyptic number.

22522690 is a deficient number, since it is larger than the sum of its proper divisors (18574838).

22522690 is a wasteful number, since it uses less digits than its factorization.

22522690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30933.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22522690 is about 4745.8076235768. The cubic root of 22522690 is about 282.4056750378.

The spelling of 22522690 in words is "twenty-two million, five hundred twenty-two thousand, six hundred ninety".