22232660 has 48 divisors (see below), whose sum is σ = 50379840. Its totient is φ = 8213760.

The previous prime is 22232659. The next prime is 22232689. The reversal of 22232660 is 6623222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14867 + ... + 16293.

It is an arithmetic number, because the mean of its divisors is an integer number (1049580).

Almost surely, 2^22232660 is an apocalyptic number.

22232660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25189920).

22232660 is an abundant number, since it is smaller than the sum of its proper divisors (28147180).

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

22232660 is a wasteful number, since it uses less digits than its factorization.

22232660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22232660 is about 4715.1521714575. The cubic root of 22232660 is about 281.1882326910.

Adding to 22232660 its reverse (6623222), we get a palindrome (28855882).

The spelling of 22232660 in words is "twenty-two million, two hundred thirty-two thousand, six hundred sixty".