22533472 has 24 divisors (see below), whose sum is σ = 47776176. Its totient is φ = 10399872.

The previous prime is 22533437. The next prime is 22533473. The reversal of 22533472 is 27433522.

It is a self number, because there is not a number n which added to its sum of digits gives 22533472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22533473) 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 3 ways as a sum of consecutive naturals, for example, 26668 + ... + 27499.

It is an arithmetic number, because the mean of its divisors is an integer number (1990674).

Almost surely, 2^22533472 is an apocalyptic number.

It is an amenable number.

22533472 is an abundant number, since it is smaller than the sum of its proper divisors (25242704).

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

22533472 is a wasteful number, since it uses less digits than its factorization.

22533472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54190 (or 54182 counting only the distinct ones).

The product of its digits is 10080, while the sum is 28.

The square root of 22533472 is about 4746.9434376238. The cubic root of 22533472 is about 282.4507320039.

Adding to 22533472 its reverse (27433522), we get a palindrome (49966994).

It can be divided in two parts, 22533 and 472, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22533472 in words is "twenty-two million, five hundred thirty-three thousand, four hundred seventy-two".