22166232 has 96 divisors (see below), whose sum is σ = 64638000. Its totient is φ = 6307840.

The previous prime is 22166201. The next prime is 22166233. The reversal of 22166232 is 23266122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166233) 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, 49144 + ... + 49592.

Almost surely, 2^22166232 is an apocalyptic number.

22166232 is a gapful number since it is divisible by the number (22) 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 22166232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32319000).

22166232 is an abundant number, since it is smaller than the sum of its proper divisors (42471768).

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

22166232 is a wasteful number, since it uses less digits than its factorization.

22166232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 482 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 22166232 is about 4708.1028026159. The cubic root of 22166232 is about 280.9079032713.

It can be divided in two parts, 2216 and 6232, that added together give a palindrome (8448).

The spelling of 22166232 in words is "twenty-two million, one hundred sixty-six thousand, two hundred thirty-two".