22133562 has 48 divisors (see below), whose sum is σ = 49859040. Its totient is φ = 6541920.

The previous prime is 22133561. The next prime is 22133581. The reversal of 22133562 is 26533122.

It is not an unprimeable number, because it can be changed into a prime (22133561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30864 + ... + 31572.

It is an arithmetic number, because the mean of its divisors is an integer number (1038730).

Almost surely, 2^22133562 is an apocalyptic number.

22133562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22133562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24929520).

22133562 is an abundant number, since it is smaller than the sum of its proper divisors (27725478).

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

22133562 is a wasteful number, since it uses less digits than its factorization.

22133562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 768 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 22133562 is about 4704.6319728540. The cubic root of 22133562 is about 280.7698287808.

Adding to 22133562 its reverse (26533122), we get a palindrome (48666684).

It can be divided in two parts, 2213 and 3562, that added together give a palindrome (5775).

The spelling of 22133562 in words is "twenty-two million, one hundred thirty-three thousand, five hundred sixty-two".