22872840 has 32 divisors (see below), whose sum is σ = 68618880. Its totient is φ = 6099392.

The previous prime is 22872797. The next prime is 22872893. The reversal of 22872840 is 4827822.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 95184 + ... + 95423.

It is an arithmetic number, because the mean of its divisors is an integer number (2144340).

Almost surely, 2^22872840 is an apocalyptic number.

22872840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22872840 is an abundant number, since it is smaller than the sum of its proper divisors (45746040).

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

22872840 is a wasteful number, since it uses less digits than its factorization.

22872840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190621 (or 190617 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 22872840 is about 4782.5558020791. Note that the first 3 decimals coincide. The cubic root of 22872840 is about 283.8616333185.

The spelling of 22872840 in words is "twenty-two million, eight hundred seventy-two thousand, eight hundred forty".