22881940 has 24 divisors (see below), whose sum is σ = 48353760. Its totient is φ = 9095328.

The previous prime is 22881931. The next prime is 22881959. The reversal of 22881940 is 4918822.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22881896 and 22881905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250 + ... + 6769.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^22881940 is an apocalyptic number.

22881940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22881940 is an abundant number, since it is smaller than the sum of its proper divisors (25471820).

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

22881940 is a wasteful number, since it uses less digits than its factorization.

22881940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191 (or 7189 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 22881940 is about 4783.5070816295. The cubic root of 22881940 is about 283.8992732789.

The spelling of 22881940 in words is "twenty-two million, eight hundred eighty-one thousand, nine hundred forty".