22133700 has 54 divisors (see below), whose sum is σ = 69379674. Its totient is φ = 5902080.

The previous prime is 22133669. The next prime is 22133707. The reversal of 22133700 is 733122.

It can be written as a sum of positive squares in 3 ways, for example, as 6084 + 22127616 = 78^2 + 4704^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22133707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11397 + ... + 13196.

Almost surely, 2^22133700 is an apocalyptic number.

22133700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22133700 is an abundant number, since it is smaller than the sum of its proper divisors (47245974).

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

22133700 is a wasteful number, since it uses less digits than its factorization.

22133700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24613 (or 24603 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 22133700 is about 4704.6466392281. The cubic root of 22133700 is about 280.7704123012.

Adding to 22133700 its reverse (733122), we get a palindrome (22866822).

The spelling of 22133700 in words is "twenty-two million, one hundred thirty-three thousand, seven hundred".