22455180 has 108 divisors (see below), whose sum is σ = 74941776. Its totient is φ = 5438400.

The previous prime is 22455161. The next prime is 22455217. The reversal of 22455180 is 8155422.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21265 + ... + 22295.

Almost surely, 2^22455180 is an apocalyptic number.

22455180 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 22455180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37470888).

22455180 is an abundant number, since it is smaller than the sum of its proper divisors (52486596).

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

22455180 is a wasteful number, since it uses less digits than its factorization.

22455180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 22455180 is about 4738.6896923095. The cubic root of 22455180 is about 282.1232296797.

The spelling of 22455180 in words is "twenty-two million, four hundred fifty-five thousand, one hundred eighty".