22381132 has 24 divisors (see below), whose sum is σ = 40678400. Its totient is φ = 10763280.

The previous prime is 22381123. The next prime is 22381133. The reversal of 22381132 is 23118322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22381133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24223 + ... + 25129.

Almost surely, 2^22381132 is an apocalyptic number.

It is an amenable number.

22381132 is a deficient number, since it is larger than the sum of its proper divisors (18297268).

22381132 is a wasteful number, since it uses less digits than its factorization.

22381132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1139 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 22381132 is about 4730.8701102440. The cubic root of 22381132 is about 281.8127791731.

Adding to 22381132 its reverse (23118322), we get a palindrome (45499454).

The spelling of 22381132 in words is "twenty-two million, three hundred eighty-one thousand, one hundred thirty-two".