22258372 has 24 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 10135680.

The previous prime is 22258343. The next prime is 22258373. The reversal of 22258372 is 27385222.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (22258373) by changing a digit.

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, 3172 + ... + 7387.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^22258372 is an apocalyptic number.

It is an amenable number.

22258372 is a deficient number, since it is larger than the sum of its proper divisors (20319548).

22258372 is a wasteful number, since it uses less digits than its factorization.

22258372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10611 (or 10609 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 22258372 is about 4717.8779127909. The cubic root of 22258372 is about 281.2965886937.

The spelling of 22258372 in words is "twenty-two million, two hundred fifty-eight thousand, three hundred seventy-two".