22485645 has 144 divisors (see below), whose sum is σ = 53639040. Its totient is φ = 8460288.

The previous prime is 22485641. The next prime is 22485647. The reversal of 22485645 is 54658422.

It is a happy number.

22485645 is a `hidden beast` number, since 2 + 2 + 4 + 8 + 5 + 645 = 666.

It is not a de Polignac number, because 22485645 - 2² = 22485641 is a prime.

It is a super-3 number, since 3×22485645³ (a number of 23 digits) contains 333 as substring.

Its product of digits (76800) is a multiple of the sum of its prime divisors (64).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22485641) 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 143 ways as a sum of consecutive naturals, for example, 1183446 + ... + 1183464.

Almost surely, 2^22485645 is an apocalyptic number.

It is an amenable number.

22485645 is an abundant number, since it is smaller than the sum of its proper divisors (31153395).

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

22485645 is a wasteful number, since it uses less digits than its factorization.

22485645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 64 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 22485645 is about 4741.9030989678. The cubic root of 22485645 is about 282.2507577930.

The spelling of 22485645 in words is "twenty-two million, four hundred eighty-five thousand, six hundred forty-five".