22879572 has 48 divisors (see below), whose sum is σ = 58652160. Its totient is φ = 6909408.

The previous prime is 22879567. The next prime is 22879573. The reversal of 22879572 is 27597822.

It is a happy number.

Its product of digits (141120) is a multiple of the sum of its prime divisors (4410).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22879573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3063 + ... + 7425.

It is an arithmetic number, because the mean of its divisors is an integer number (1221920).

Almost surely, 2^22879572 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 22879572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29326080).

22879572 is an abundant number, since it is smaller than the sum of its proper divisors (35772588).

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

22879572 is a wasteful number, since it uses less digits than its factorization.

22879572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412 (or 4410 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 22879572 is about 4783.2595580838. The cubic root of 22879572 is about 283.8894795773.

It can be divided in two parts, 228 and 79572, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 22879572 in words is "twenty-two million, eight hundred seventy-nine thousand, five hundred seventy-two".