22347872 has 12 divisors (see below), whose sum is σ = 43997436. Its totient is φ = 11173920.

The previous prime is 22347863. The next prime is 22347901. The reversal of 22347872 is 27874322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349154 + ... + 349217.

It is an arithmetic number, because the mean of its divisors is an integer number (3666453).

Almost surely, 2^22347872 is an apocalyptic number.

It is an amenable number.

22347872 is a deficient number, since it is larger than the sum of its proper divisors (21649564).

22347872 is an equidigital number, since it uses as much as digits as its factorization.

22347872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698381 (or 698373 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 22347872 is about 4727.3535937139. The cubic root of 22347872 is about 281.6731118273.

The spelling of 22347872 in words is "twenty-two million, three hundred forty-seven thousand, eight hundred seventy-two".