22113980 has 48 divisors (see below), whose sum is σ = 53415936. Its totient is φ = 7533120.

The previous prime is 22113977. The next prime is 22113983. The reversal of 22113980 is 8931122.

It is an interprime number because it is at equal distance from previous prime (22113977) and next prime (22113983).

It is a super-2 number, since 2×22113980² = 978056222880800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26327 + ... + 27153.

It is an arithmetic number, because the mean of its divisors is an integer number (1112832).

Almost surely, 2^22113980 is an apocalyptic number.

22113980 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 22113980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26707968).

22113980 is an abundant number, since it is smaller than the sum of its proper divisors (31301956).

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

22113980 is a wasteful number, since it uses less digits than its factorization.

22113980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 22113980 is about 4702.5503718727. The cubic root of 22113980 is about 280.6870034770.

The spelling of 22113980 in words is "twenty-two million, one hundred thirteen thousand, nine hundred eighty".