22351332 has 12 divisors (see below), whose sum is σ = 52153136. Its totient is φ = 7450440.

The previous prime is 22351327. The next prime is 22351333. The reversal of 22351332 is 23315322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22351299 and 22351308.

It is not an unprimeable number, because it can be changed into a prime (22351333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931294 + ... + 931317.

Almost surely, 2^22351332 is an apocalyptic number.

It is an amenable number.

22351332 is an abundant number, since it is smaller than the sum of its proper divisors (29801804).

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

22351332 is a wasteful number, since it uses less digits than its factorization.

22351332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862618 (or 1862616 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 22351332 is about 4727.7195348286. The cubic root of 22351332 is about 281.6876477180.

Adding to 22351332 its reverse (23315322), we get a palindrome (45666654).

The spelling of 22351332 in words is "twenty-two million, three hundred fifty-one thousand, three hundred thirty-two".