22712832 has 160 divisors (see below), whose sum is σ = 70709760. Its totient is φ = 7188480.

The previous prime is 22712813. The next prime is 22712843. The reversal of 22712832 is 23821722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22712796 and 22712805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428518 + ... + 428570.

It is an arithmetic number, because the mean of its divisors is an integer number (441936).

Almost surely, 2^22712832 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 22712832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35354880).

22712832 is an abundant number, since it is smaller than the sum of its proper divisors (47996928).

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

22712832 is an equidigital number, since it uses as much as digits as its factorization.

22712832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 89 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22712832 is about 4765.7981493135. The cubic root of 22712832 is about 283.1981614359.

The spelling of 22712832 in words is "twenty-two million, seven hundred twelve thousand, eight hundred thirty-two".