22681792 has 56 divisors (see below), whose sum is σ = 51901344. Its totient is φ = 9633792.

The previous prime is 22681781. The next prime is 22681793. The reversal of 22681792 is 29718622.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22681793) 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, 88128 + ... + 88384.

Almost surely, 2^22681792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22681792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25950672).

22681792 is an abundant number, since it is smaller than the sum of its proper divisors (29219552).

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

22681792 is a wasteful number, since it uses less digits than its factorization.

22681792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 463 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 22681792 is about 4762.5404985155. The cubic root of 22681792 is about 283.0690937440.

Subtracting from 22681792 its product of digits (24192), we obtain a square (22657600 = 4760²).

It can be divided in two parts, 2268 and 1792, that multiplied together give a square (4064256 = 2016²).

The spelling of 22681792 in words is "twenty-two million, six hundred eighty-one thousand, seven hundred ninety-two".