22336572 has 48 divisors (see below), whose sum is σ = 55544832. Its totient is φ = 6961920.

The previous prime is 22336543. The next prime is 22336591. The reversal of 22336572 is 27563322.

It is a super-2 number, since 2×22336572² = 997844897422368, which contains 22 as substring.

It is a congruent 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, 45247 + ... + 45737.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^22336572 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 22336572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27772416).

22336572 is an abundant number, since it is smaller than the sum of its proper divisors (33208260).

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

22336572 is a wasteful number, since it uses less digits than its factorization.

22336572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its digits is 15120, while the sum is 30.

The square root of 22336572 is about 4726.1582707311. The cubic root of 22336572 is about 281.6256286667.

Adding to 22336572 its reverse (27563322), we get a palindrome (49899894).

The spelling of 22336572 in words is "twenty-two million, three hundred thirty-six thousand, five hundred seventy-two".