22881028 has 12 divisors (see below), whose sum is σ = 40606272. Its totient is φ = 11279240.

The previous prime is 22881013. The next prime is 22881049. The reversal of 22881028 is 82018822.

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, 40000 + ... + 40567.

It is an arithmetic number, because the mean of its divisors is an integer number (3383856).

Almost surely, 2^22881028 is an apocalyptic number.

It is an amenable number.

22881028 is a deficient number, since it is larger than the sum of its proper divisors (17725244).

22881028 is a wasteful number, since it uses less digits than its factorization.

22881028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80642 (or 80640 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 22881028 is about 4783.4117531319. The cubic root of 22881028 is about 283.8955014603.

The spelling of 22881028 in words is "twenty-two million, eight hundred eighty-one thousand, twenty-eight".