22745718 has 32 divisors (see below), whose sum is σ = 50721120. Its totient is φ = 7555680.

The previous prime is 22745687. The next prime is 22745719. The reversal of 22745718 is 81754722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22745719) 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 15 ways as a sum of consecutive naturals, for example, 20908 + ... + 21968.

It is an arithmetic number, because the mean of its divisors is an integer number (1585035).

Almost surely, 2^22745718 is an apocalyptic number.

22745718 is an abundant number, since it is smaller than the sum of its proper divisors (27975402).

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

22745718 is a wasteful number, since it uses less digits than its factorization.

22745718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1463 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 22745718 is about 4769.2471103938. The cubic root of 22745718 is about 283.3347767708.

It can be divided in two parts, 227457 and 18, that added together give a triangular number (227475 = T₆₇₄).

The spelling of 22745718 in words is "twenty-two million, seven hundred forty-five thousand, seven hundred eighteen".