22185792 has 112 divisors (see below), whose sum is σ = 67177920. Its totient is φ = 7174656.

The previous prime is 22185791. The next prime is 22185803. The reversal of 22185792 is 29758122.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22185791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63763 + ... + 64109.

Almost surely, 2^22185792 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 22185792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33588960).

22185792 is an abundant number, since it is smaller than the sum of its proper divisors (44992128).

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

22185792 is a wasteful number, since it uses less digits than its factorization.

22185792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 389 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 22185792 is about 4710.1796144096. The cubic root of 22185792 is about 280.9905055407.

The spelling of 22185792 in words is "twenty-two million, one hundred eighty-five thousand, seven hundred ninety-two".