22536330 has 64 divisors (see below), whose sum is σ = 56471040. Its totient is φ = 5750784.

The previous prime is 22536329. The next prime is 22536361. The reversal of 22536330 is 3363522.

It is a self number, because there is not a number n which added to its sum of digits gives 22536330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87562 + ... + 87818.

It is an arithmetic number, because the mean of its divisors is an integer number (882360).

Almost surely, 2^22536330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22536330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28235520).

22536330 is an abundant number, since it is smaller than the sum of its proper divisors (33934710).

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

22536330 is a wasteful number, since it uses less digits than its factorization.

22536330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 22536330 is about 4747.2444638969. The cubic root of 22536330 is about 282.4626729077.

Adding to 22536330 its reverse (3363522), we get a palindrome (25899852).

The spelling of 22536330 in words is "twenty-two million, five hundred thirty-six thousand, three hundred thirty".