22472544 has 24 divisors (see below), whose sum is σ = 58990680. Its totient is φ = 7490816.

The previous prime is 22472543. The next prime is 22472557. The reversal of 22472544 is 44527422.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22472543) 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, 116949 + ... + 117140.

It is an arithmetic number, because the mean of its divisors is an integer number (2457945).

Almost surely, 2^22472544 is an apocalyptic number.

22472544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22472544 is an abundant number, since it is smaller than the sum of its proper divisors (36518136).

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

22472544 is a wasteful number, since it uses less digits than its factorization.

22472544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234102 (or 234094 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 22472544 is about 4740.5214903004. The cubic root of 22472544 is about 282.1959304345.

Adding to 22472544 its reverse (44527422), we get a palindrome (66999966).

The spelling of 22472544 in words is "twenty-two million, four hundred seventy-two thousand, five hundred forty-four".