23166144 has 84 divisors (see below), whose sum is σ = 68258944. Its totient is φ = 7506432.

The previous prime is 23166139. The next prime is 23166151. The reversal of 23166144 is 44166132.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 20769 + ... + 21855.

Almost surely, 2^23166144 is an apocalyptic number.

23166144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23166144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34129472).

23166144 is an abundant number, since it is smaller than the sum of its proper divisors (45092800).

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

23166144 is a wasteful number, since it uses less digits than its factorization.

23166144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1129 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 23166144 is about 4813.1220636921. The cubic root of 23166144 is about 285.0698259197.

The spelling of 23166144 in words is "twenty-three million, one hundred sixty-six thousand, one hundred forty-four".