22418980 has 24 divisors (see below), whose sum is σ = 47541312. Its totient is φ = 8879712.

The previous prime is 22418969. The next prime is 22418989. The reversal of 22418980 is 8981422.

It is a super-2 number, since 2×22418980² = 1005221328480800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22418989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3382 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (1980888).

Almost surely, 2^22418980 is an apocalyptic number.

22418980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22418980 is an abundant number, since it is smaller than the sum of its proper divisors (25122332).

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

22418980 is a wasteful number, since it uses less digits than its factorization.

22418980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995 (or 10993 counting only the distinct ones).

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

The square root of 22418980 is about 4734.8685303818. The cubic root of 22418980 is about 281.9715445023.

The spelling of 22418980 in words is "twenty-two million, four hundred eighteen thousand, nine hundred eighty".