22785492 has 24 divisors (see below), whose sum is σ = 53809056. Its totient is φ = 7503328.

The previous prime is 22785487. The next prime is 22785493. The reversal of 22785492 is 29458722.

It is a self number, because there is not a number n which added to its sum of digits gives 22785492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22785493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10443 + ... + 12434.

It is an arithmetic number, because the mean of its divisors is an integer number (2242044).

Almost surely, 2^22785492 is an apocalyptic number.

It is an amenable number.

22785492 is an abundant number, since it is smaller than the sum of its proper divisors (31023564).

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

22785492 is a wasteful number, since it uses less digits than its factorization.

22785492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22967 (or 22965 counting only the distinct ones).

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

The square root of 22785492 is about 4773.4151296530. The cubic root of 22785492 is about 283.4998304762.

The spelling of 22785492 in words is "twenty-two million, seven hundred eighty-five thousand, four hundred ninety-two".