22881872 has 40 divisors (see below), whose sum is σ = 49830144. Its totient is φ = 10099584.

The previous prime is 22881863. The next prime is 22881917. The reversal of 22881872 is 27818822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393 + ... + 7175.

Almost surely, 2^22881872 is an apocalyptic number.

It is a pronic number, being equal to 4783×4784.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22881872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24915072).

22881872 is an abundant number, since it is smaller than the sum of its proper divisors (26948272).

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

22881872 is a wasteful number, since it uses less digits than its factorization.

22881872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827 (or 4821 counting only the distinct ones).

The product of its digits is 28672, while the sum is 38.

The square root of 22881872 is about 4783.4999738685. The cubic root of 22881872 is about 283.8989920502.

The spelling of 22881872 in words is "twenty-two million, eight hundred eighty-one thousand, eight hundred seventy-two".