22457892 has 12 divisors (see below), whose sum is σ = 52401776. Its totient is φ = 7485960.

The previous prime is 22457887. The next prime is 22457899. The reversal of 22457892 is 29875422.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22457892.

It is not an unprimeable number, because it can be changed into a prime (22457899) 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, 935734 + ... + 935757.

Almost surely, 2^22457892 is an apocalyptic number.

It is an amenable number.

22457892 is an abundant number, since it is smaller than the sum of its proper divisors (29943884).

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

22457892 is a wasteful number, since it uses less digits than its factorization.

22457892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871498 (or 1871496 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 22457892 is about 4738.9758387230. The cubic root of 22457892 is about 282.1345869315.

The spelling of 22457892 in words is "twenty-two million, four hundred fifty-seven thousand, eight hundred ninety-two".