22279344 has 40 divisors (see below), whose sum is σ = 58537920. Its totient is φ = 7299648.

The previous prime is 22279339. The next prime is 22279349. The reversal of 22279344 is 44397222.

It is an interprime number because it is at equal distance from previous prime (22279339) and next prime (22279349).

It is not an unprimeable number, because it can be changed into a prime (22279349) 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 7 ways as a sum of consecutive naturals, for example, 1102 + ... + 6765.

It is an arithmetic number, because the mean of its divisors is an integer number (1463448).

Almost surely, 2^22279344 is an apocalyptic number.

22279344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22279344 is an abundant number, since it is smaller than the sum of its proper divisors (36258576).

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

22279344 is a wasteful number, since it uses less digits than its factorization.

22279344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7937 (or 7931 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 22279344 is about 4720.0999989407. The cubic root of 22279344 is about 281.3849075253.

The spelling of 22279344 in words is "twenty-two million, two hundred seventy-nine thousand, three hundred forty-four".