23122190 has 32 divisors (see below), whose sum is σ = 51226560. Its totient is φ = 7317504.

The previous prime is 23122147. The next prime is 23122213. The reversal of 23122190 is 9122132.

It is a super-2 number, since 2×23122190² = 1069271340792200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11795 + ... + 13614.

It is an arithmetic number, because the mean of its divisors is an integer number (1600830).

Almost surely, 2^23122190 is an apocalyptic number.

23122190 is an abundant number, since it is smaller than the sum of its proper divisors (28104370).

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

23122190 is a wasteful number, since it uses less digits than its factorization.

23122190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25436.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 23122190 is about 4808.5538366540. The cubic root of 23122190 is about 284.8894205256.

The spelling of 23122190 in words is "twenty-three million, one hundred twenty-two thousand, one hundred ninety".