22881472 has 56 divisors (see below), whose sum is σ = 49418240. Its totient is φ = 10471680.

The previous prime is 22881437. The next prime is 22881479. The reversal of 22881472 is 27418822.

It is not an unprimeable number, because it can be changed into a prime (22881479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37393 + ... + 37999.

Almost surely, 2^22881472 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 22881472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24709120).

22881472 is an abundant number, since it is smaller than the sum of its proper divisors (26536768).

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

22881472 is a wasteful number, since it uses less digits than its factorization.

22881472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 659 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 22881472 is about 4783.4581632957. The cubic root of 22881472 is about 283.8973377529.

The spelling of 22881472 in words is "twenty-two million, eight hundred eighty-one thousand, four hundred seventy-two".