23390190 has 48 divisors (see below), whose sum is σ = 61090848. Its totient is φ = 6209088.

The previous prime is 23390183. The next prime is 23390221. The reversal of 23390190 is 9109332.

It is a super-2 number, since 2×23390190² = 1094201976472200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25927 + ... + 26813.

It is an arithmetic number, because the mean of its divisors is an integer number (1272726).

Almost surely, 2^23390190 is an apocalyptic number.

23390190 is an abundant number, since it is smaller than the sum of its proper divisors (37700658).

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

23390190 is a wasteful number, since it uses less digits than its factorization.

23390190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 23390190 is about 4836.3405587283. The cubic root of 23390190 is about 285.9858747323.

The spelling of 23390190 in words is "twenty-three million, three hundred ninety thousand, one hundred ninety".