22249344 has 64 divisors (see below), whose sum is σ = 63660240. Its totient is φ = 6844416.

The previous prime is 22249343. The next prime is 22249363. The reversal of 22249344 is 44394222.

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 (22249343) 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, 2764 + ... + 7220.

Almost surely, 2^22249344 is an apocalyptic number.

22249344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22249344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31830120).

22249344 is an abundant number, since it is smaller than the sum of its proper divisors (41410896).

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

22249344 is a wasteful number, since it uses less digits than its factorization.

22249344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487 (or 4475 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 22249344 is about 4716.9210296548. The cubic root of 22249344 is about 281.2585522338.

The spelling of 22249344 in words is "twenty-two million, two hundred forty-nine thousand, three hundred forty-four".