22469472 has 72 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 7361280.

The previous prime is 22469453. The next prime is 22469477. The reversal of 22469472 is 27496422.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22469477) 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 11 ways as a sum of consecutive naturals, for example, 16929 + ... + 18207.

It is an arithmetic number, because the mean of its divisors is an integer number (902720).

Almost surely, 2^22469472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22469472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32497920).

22469472 is an abundant number, since it is smaller than the sum of its proper divisors (42526368).

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

22469472 is a wasteful number, since it uses less digits than its factorization.

22469472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1345 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 22469472 is about 4740.1974642413. The cubic root of 22469472 is about 282.1830711070.

It can be divided in two parts, 224 and 69472, that added together give a palindrome (69696).

The spelling of 22469472 in words is "twenty-two million, four hundred sixty-nine thousand, four hundred seventy-two".