22500432 has 30 divisors (see below), whose sum is σ = 62970362. Its totient is φ = 7500096.

The previous prime is 22500419. The next prime is 22500437. The reversal of 22500432 is 23400522.

22500432 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 11451456 + 11048976 = 3384^2 + 3324^2 .

It is a super-3 number, since 3×22500432³ (a number of 23 digits) contains 333 as substring.

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

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22500437) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 77983 + ... + 78270.

Almost surely, 2^22500432 is an apocalyptic number.

It is an amenable number.

22500432 is an abundant number, since it is smaller than the sum of its proper divisors (40469930).

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

22500432 is a wasteful number, since it uses less digits than its factorization.

22500432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156267 (or 156258 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22500432 is about 4743.4620268323. The cubic root of 22500432 is about 282.3126154419.

Adding to 22500432 its reverse (23400522), we get a palindrome (45900954).

The spelling of 22500432 in words is "twenty-two million, five hundred thousand, four hundred thirty-two".