23091190 has 16 divisors (see below), whose sum is σ = 41624928. Its totient is φ = 9222976.

The previous prime is 23091161. The next prime is 23091191. The reversal of 23091190 is 9119032.

It is a super-2 number, since 2×23091190² = 1066406111232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23091191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8319 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (2601558).

Almost surely, 2^23091190 is an apocalyptic number.

23091190 is a deficient number, since it is larger than the sum of its proper divisors (18533738).

23091190 is a wasteful number, since it uses less digits than its factorization.

23091190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

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

The square root of 23091190 is about 4805.3293331467. The cubic root of 23091190 is about 284.7620461748.

The spelling of 23091190 in words is "twenty-three million, ninety-one thousand, one hundred ninety".