22244320 has 48 divisors (see below), whose sum is σ = 60062688. Its totient is φ = 7626240.

The previous prime is 22244317. The next prime is 22244323. The reversal of 22244320 is 2344222.

It is an interprime number because it is at equal distance from previous prime (22244317) and next prime (22244323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244323) 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, 8811 + ... + 11050.

It is an arithmetic number, because the mean of its divisors is an integer number (1251306).

Almost surely, 2^22244320 is an apocalyptic number.

22244320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244320 is an abundant number, since it is smaller than the sum of its proper divisors (37818368).

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

22244320 is a wasteful number, since it uses less digits than its factorization.

22244320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19883 (or 19875 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22244320 is about 4716.3884488027. The cubic root of 22244320 is about 281.2373808330.

Adding to 22244320 its reverse (2344222), we get a palindrome (24588542).

The spelling of 22244320 in words is "twenty-two million, two hundred forty-four thousand, three hundred twenty".