22188948 has 12 divisors (see below), whose sum is σ = 51774240. Its totient is φ = 7396312.

The previous prime is 22188923. The next prime is 22188953. The reversal of 22188948 is 84988122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 924528 + ... + 924551.

It is an arithmetic number, because the mean of its divisors is an integer number (4314520).

Almost surely, 2^22188948 is an apocalyptic number.

It is an amenable number.

22188948 is an abundant number, since it is smaller than the sum of its proper divisors (29585292).

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

22188948 is a wasteful number, since it uses less digits than its factorization.

22188948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849086 (or 1849084 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 22188948 is about 4710.5146215674. The cubic root of 22188948 is about 281.0038288423.

The spelling of 22188948 in words is "twenty-two million, one hundred eighty-eight thousand, nine hundred forty-eight".