23109190 has 16 divisors (see below), whose sum is σ = 44796528. Its totient is φ = 8532576.

The previous prime is 23109169. The next prime is 23109193. The reversal of 23109190 is 9190132.

It is a super-2 number, since 2×23109190² = 1068069324912200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23109193) 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, 88752 + ... + 89011.

It is an arithmetic number, because the mean of its divisors is an integer number (2799783).

Almost surely, 2^23109190 is an apocalyptic number.

23109190 is a deficient number, since it is larger than the sum of its proper divisors (21687338).

23109190 is a wasteful number, since it uses less digits than its factorization.

23109190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177783.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 23109190 is about 4807.2018888330. The cubic root of 23109190 is about 284.8360193444.

The spelling of 23109190 in words is "twenty-three million, one hundred nine thousand, one hundred ninety".