22244388 has 24 divisors (see below), whose sum is σ = 52238592. Its totient is φ = 7366944.

The previous prime is 22244333. The next prime is 22244401. The reversal of 22244388 is 88344222.

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 7 ways as a sum of consecutive naturals, for example, 4020 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (2176608).

Almost surely, 2^22244388 is an apocalyptic number.

It is an amenable number.

22244388 is an abundant number, since it is smaller than the sum of its proper divisors (29994204).

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

22244388 is a wasteful number, since it uses less digits than its factorization.

22244388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11971 (or 11969 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 22244388 is about 4716.3956577030. The cubic root of 22244388 is about 281.2376674099.

The spelling of 22244388 in words is "twenty-two million, two hundred forty-four thousand, three hundred eighty-eight".