23150190 has 64 divisors (see below), whose sum is σ = 66272256. Its totient is φ = 5060352.

The previous prime is 23150173. The next prime is 23150191. The reversal of 23150190 is 9105132.

It is a super-2 number, since 2×23150190² = 1071862594072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23150191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2434 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (1035504).

Almost surely, 2^23150190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23150190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33136128).

23150190 is an abundant number, since it is smaller than the sum of its proper divisors (43122066).

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

23150190 is a wasteful number, since it uses less digits than its factorization.

23150190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 23150190 is about 4811.4644340367. The cubic root of 23150190 is about 285.0043705085.

The spelling of 23150190 in words is "twenty-three million, one hundred fifty thousand, one hundred ninety".