22742624 has 24 divisors (see below), whose sum is σ = 45105480. Its totient is φ = 11287296.

The previous prime is 22742611. The next prime is 22742627. The reversal of 22742624 is 42624722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892 + ... + 7004.

It is an arithmetic number, because the mean of its divisors is an integer number (1879395).

Almost surely, 2^22742624 is an apocalyptic number.

It is an amenable number.

22742624 is a deficient number, since it is larger than the sum of its proper divisors (22362856).

22742624 is a wasteful number, since it uses less digits than its factorization.

22742624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5254 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 22742624 is about 4768.9227295061. The cubic root of 22742624 is about 283.3219292603.

The spelling of 22742624 in words is "twenty-two million, seven hundred forty-two thousand, six hundred twenty-four".