22400132 has 24 divisors (see below), whose sum is σ = 40253976. Its totient is φ = 10902528.

The previous prime is 22400111. The next prime is 22400149. The reversal of 22400132 is 23100422.

It can be written as a sum of positive squares in 4 ways, for example, as 2114116 + 20286016 = 1454^2 + 4504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32948 + ... + 33620.

It is an arithmetic number, because the mean of its divisors is an integer number (1677249).

Almost surely, 2^22400132 is an apocalyptic number.

It is an amenable number.

22400132 is a deficient number, since it is larger than the sum of its proper divisors (17853844).

22400132 is a wasteful number, since it uses less digits than its factorization.

22400132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22400132 is about 4732.8777715044. The cubic root of 22400132 is about 281.8925029978.

Adding to 22400132 its reverse (23100422), we get a palindrome (45500554).

The spelling of 22400132 in words is "twenty-two million, four hundred thousand, one hundred thirty-two".