22500612 has 48 divisors (see below), whose sum is σ = 58750720. Its totient is φ = 7446816.

The previous prime is 22500589. The next prime is 22500613. The reversal of 22500612 is 21600522.

22500612 is a `hidden beast` number, since 2 + 2 + 50 + 0 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22500613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16293 + ... + 17619.

Almost surely, 2^22500612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22500612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29375360).

22500612 is an abundant number, since it is smaller than the sum of its proper divisors (36250108).

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

22500612 is a wasteful number, since it uses less digits than its factorization.

22500612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22500612 is about 4743.4810002782. The cubic root of 22500612 is about 282.3133682591.

It can be divided in two parts, 225006 and 12, that multiplied together give a palindrome (2700072).

The spelling of 22500612 in words is "twenty-two million, five hundred thousand, six hundred twelve".