22522740 has 48 divisors (see below), whose sum is σ = 65103360. Its totient is φ = 5811840.

The previous prime is 22522693. The next prime is 22522757. The reversal of 22522740 is 4722522.

It is a self number, because there is not a number n which added to its sum of digits gives 22522740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4195 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (1356320).

Almost surely, 2^22522740 is an apocalyptic number.

22522740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22522740 is an abundant number, since it is smaller than the sum of its proper divisors (42580620).

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

22522740 is a wasteful number, since it uses less digits than its factorization.

22522740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12152 (or 12150 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22522740 is about 4745.8128913812. The cubic root of 22522740 is about 282.4058840163.

The spelling of 22522740 in words is "twenty-two million, five hundred twenty-two thousand, seven hundred forty".