22470144 has 40 divisors (see below), whose sum is σ = 59865960. Its totient is φ = 7489536.

The previous prime is 22470127. The next prime is 22470187. The reversal of 22470144 is 44107422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5779 + ... + 8850.

It is an arithmetic number, because the mean of its divisors is an integer number (1496649).

Almost surely, 2^22470144 is an apocalyptic number.

22470144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22470144 is an abundant number, since it is smaller than the sum of its proper divisors (37395816).

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

22470144 is an equidigital number, since it uses as much as digits as its factorization.

22470144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14650 (or 14634 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 22470144 is about 4740.2683468344. The cubic root of 22470144 is about 282.1858841851.

Adding to 22470144 its reverse (44107422), we get a palindrome (66577566).

The spelling of 22470144 in words is "twenty-two million, four hundred seventy thousand, one hundred forty-four".