23193988 has 12 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 11581832.

The previous prime is 23193979. The next prime is 23193991. The reversal of 23193988 is 88939132.

It is a happy number.

It is a super-2 number, since 2×23193988² = 1075922158688288, which contains 22 as substring.

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, 93 + ... + 6811.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^23193988 is an apocalyptic number.

It is an amenable number.

23193988 is a deficient number, since it is larger than the sum of its proper divisors (17448572).

23193988 is a wasteful number, since it uses less digits than its factorization.

23193988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586 (or 7584 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 23193988 is about 4816.0137042994. The cubic root of 23193988 is about 285.1839911754.

The spelling of 23193988 in words is "twenty-three million, one hundred ninety-three thousand, nine hundred eighty-eight".