23189250 has 96 divisors (see below), whose sum is σ = 67436928. Its totient is φ = 5292000.

The previous prime is 23189233. The next prime is 23189251. The reversal of 23189250 is 5298132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (23189251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36435 + ... + 37065.

It is an arithmetic number, because the mean of its divisors is an integer number (702468).

Almost surely, 2^23189250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23189250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33718464).

23189250 is an abundant number, since it is smaller than the sum of its proper divisors (44247678).

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

23189250 is a wasteful number, since it uses less digits than its factorization.

23189250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23189250 is about 4815.5217785823. The cubic root of 23189250 is about 285.1645710026.

The spelling of 23189250 in words is "twenty-three million, one hundred eighty-nine thousand, two hundred fifty".