22485180 has 24 divisors (see below), whose sum is σ = 62958672. Its totient is φ = 5996032.

The previous prime is 22485167. The next prime is 22485181. The reversal of 22485180 is 8158422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22485181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187317 + ... + 187436.

It is an arithmetic number, because the mean of its divisors is an integer number (2623278).

Almost surely, 2^22485180 is an apocalyptic number.

22485180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22485180 is an abundant number, since it is smaller than the sum of its proper divisors (40473492).

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

22485180 is a wasteful number, since it uses less digits than its factorization.

22485180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374765 (or 374763 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 22485180 is about 4741.8540677672. The cubic root of 22485180 is about 282.2488121442.

The spelling of 22485180 in words is "twenty-two million, four hundred eighty-five thousand, one hundred eighty".