22490832 has 160 divisors (see below), whose sum is σ = 75550720. Its totient is φ = 5598720.

The previous prime is 22490827. The next prime is 22490891. The reversal of 22490832 is 23809422.

It is a self number, because there is not a number n which added to its sum of digits gives 22490832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82857 + ... + 83127.

It is an arithmetic number, because the mean of its divisors is an integer number (472192).

Almost surely, 2^22490832 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 22490832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37775360).

22490832 is an abundant number, since it is smaller than the sum of its proper divisors (53059888).

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

22490832 is a wasteful number, since it uses less digits than its factorization.

22490832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 22490832 is about 4742.4499997364. The cubic root of 22490832 is about 282.2724593738.

The spelling of 22490832 in words is "twenty-two million, four hundred ninety thousand, eight hundred thirty-two".