22479744 has 64 divisors (see below), whose sum is σ = 68250240. Its totient is φ = 6422016.

The previous prime is 22479739. The next prime is 22479749. The reversal of 22479744 is 44797422.

It is an interprime number because it is at equal distance from previous prime (22479739) and next prime (22479749).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22479749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494 + ... + 6869.

It is an arithmetic number, because the mean of its divisors is an integer number (1066410).

Almost surely, 2^22479744 is an apocalyptic number.

22479744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22479744 is an abundant number, since it is smaller than the sum of its proper divisors (45770496).

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

22479744 is an equidigital number, since it uses as much as digits as its factorization.

22479744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387 (or 8375 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 22479744 is about 4741.2808396044. The cubic root of 22479744 is about 282.2260648917.

The spelling of 22479744 in words is "twenty-two million, four hundred seventy-nine thousand, seven hundred forty-four".