22773632 has 48 divisors (see below), whose sum is σ = 52791120. Its totient is φ = 9757440.

The previous prime is 22773589. The next prime is 22773637. The reversal of 22773632 is 23637722.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22773637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4457 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (1099815).

Almost surely, 2^22773632 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 22773632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26395560).

22773632 is an abundant number, since it is smaller than the sum of its proper divisors (30017488).

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

22773632 is an equidigital number, since it uses as much as digits as its factorization.

22773632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659 (or 3640 counting only the distinct ones).

The product of its digits is 21168, while the sum is 32.

The square root of 22773632 is about 4772.1726708073. The cubic root of 22773632 is about 283.4506340910.

The spelling of 22773632 in words is "twenty-two million, seven hundred seventy-three thousand, six hundred thirty-two".