23180190 has 64 divisors (see below), whose sum is σ = 63901440. Its totient is φ = 5322240.

The previous prime is 23180189. The next prime is 23180203. The reversal of 23180190 is 9108132.

It is a super-2 number, since 2×23180190² = 1074642416872200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23180190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4422 + ... + 8118.

It is an arithmetic number, because the mean of its divisors is an integer number (998460).

Almost surely, 2^23180190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23180190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31950720).

23180190 is an abundant number, since it is smaller than the sum of its proper divisors (40721250).

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

23180190 is a wasteful number, since it uses less digits than its factorization.

23180190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 23180190 is about 4814.5809786522. The cubic root of 23180190 is about 285.1274283962.

The spelling of 23180190 in words is "twenty-three million, one hundred eighty thousand, one hundred ninety".