22366572 has 48 divisors (see below), whose sum is σ = 55292160. Its totient is φ = 7017408.

The previous prime is 22366567. The next prime is 22366601. The reversal of 22366572 is 27566322.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59778 + ... + 60150.

It is an arithmetic number, because the mean of its divisors is an integer number (1151920).

Almost surely, 2^22366572 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 22366572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27646080).

22366572 is an abundant number, since it is smaller than the sum of its proper divisors (32925588).

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

22366572 is a wasteful number, since it uses less digits than its factorization.

22366572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 22366572 is about 4729.3310309176. The cubic root of 22366572 is about 281.7516550059.

It can be divided in two parts, 223 and 66572, that added together give a triangular number (66795 = T₃₆₅).

The spelling of 22366572 in words is "twenty-two million, three hundred sixty-six thousand, five hundred seventy-two".