22879980 has 72 divisors (see below), whose sum is σ = 70324800. Its totient is φ = 6020352.

The previous prime is 22879979. The next prime is 22879991. The reversal of 22879980 is 8997822.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13416 + ... + 15024.

Almost surely, 2^22879980 is an apocalyptic number.

22879980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22879980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35162400).

22879980 is an abundant number, since it is smaller than the sum of its proper divisors (47444820).

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

22879980 is a wasteful number, since it uses less digits than its factorization.

22879980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 22879980 is about 4783.3022066351. The cubic root of 22879980 is about 283.8911670538.

It can be divided in two parts, 228 and 79980, that added together give a palindrome (80208).

The spelling of 22879980 in words is "twenty-two million, eight hundred seventy-nine thousand, nine hundred eighty".