22889472 has 44 divisors (see below), whose sum is σ = 61016976. Its totient is φ = 7628800.

The previous prime is 22889467. The next prime is 22889483. The reversal of 22889472 is 27498822.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654 + ... + 6797.

Almost surely, 2^22889472 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 22889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30508488).

22889472 is an abundant number, since it is smaller than the sum of its proper divisors (38127504).

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

22889472 is an equidigital number, since it uses as much as digits as its factorization.

22889472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474 (or 7456 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 22889472 is about 4784.2943053286. The cubic root of 22889472 is about 283.9304200369.

The spelling of 22889472 in words is "twenty-two million, eight hundred eighty-nine thousand, four hundred seventy-two".