22132232 has 32 divisors (see below), whose sum is σ = 44371800. Its totient is φ = 10312704.

The previous prime is 22132223. The next prime is 22132237. The reversal of 22132232 is 23223122.

It can be written as a sum of positive squares in 4 ways, for example, as 22033636 + 98596 = 4694^2 + 314^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 22132232.

It is not an unprimeable number, because it can be changed into a prime (22132237) 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, 14078 + ... + 15570.

Almost surely, 2^22132232 is an apocalyptic number.

It is an amenable number.

22132232 is an abundant number, since it is smaller than the sum of its proper divisors (22239568).

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

22132232 is a wasteful number, since it uses less digits than its factorization.

22132232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1621 counting only the distinct ones).

The product of its digits is 288, while the sum is 17.

The square root of 22132232 is about 4704.4906206730. The cubic root of 22132232 is about 280.7642048727.

Adding to 22132232 its reverse (23223122), we get a palindrome (45355354).

The spelling of 22132232 in words is "twenty-two million, one hundred thirty-two thousand, two hundred thirty-two".