22451332 has 12 divisors (see below), whose sum is σ = 40203856. Its totient is φ = 10964520.

The previous prime is 22451327. The next prime is 22451353. The reversal of 22451332 is 23315422.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65094 + ... + 65437.

Almost surely, 2^22451332 is an apocalyptic number.

It is an amenable number.

22451332 is a deficient number, since it is larger than the sum of its proper divisors (17752524).

22451332 is a wasteful number, since it uses less digits than its factorization.

22451332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130578 (or 130576 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 22451332 is about 4738.2836555023. The cubic root of 22451332 is about 282.1071135437.

Adding to 22451332 its reverse (23315422), we get a palindrome (45766754).

The spelling of 22451332 in words is "twenty-two million, four hundred fifty-one thousand, three hundred thirty-two".