22526140 has 48 divisors (see below), whose sum is σ = 58226112. Its totient is φ = 7128576.

The previous prime is 22526123. The next prime is 22526143. The reversal of 22526140 is 4162522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22526143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4369 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (1213044).

Almost surely, 2^22526140 is an apocalyptic number.

22526140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22526140 is an abundant number, since it is smaller than the sum of its proper divisors (35699972).

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

22526140 is a wasteful number, since it uses less digits than its factorization.

22526140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406 (or 12404 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22526140 is about 4746.1710883616. The cubic root of 22526140 is about 282.4200938282.

Adding to 22526140 its reverse (4162522), we get a palindrome (26688662).

The spelling of 22526140 in words is "twenty-two million, five hundred twenty-six thousand, one hundred forty".