23167144 has 96 divisors (see below), whose sum is σ = 58988160. Its totient is φ = 8300160.

The previous prime is 23167139. The next prime is 23167159. The reversal of 23167144 is 44176132.

It is a super-2 number, since 2×23167144² = 1073433122233472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 87957 + ... + 88219.

It is an arithmetic number, because the mean of its divisors is an integer number (614460).

Almost surely, 2^23167144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23167144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29494080).

23167144 is an abundant number, since it is smaller than the sum of its proper divisors (35821016).

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

23167144 is a wasteful number, since it uses less digits than its factorization.

23167144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 296 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 23167144 is about 4813.2259452471. The cubic root of 23167144 is about 285.0739276773.

The spelling of 23167144 in words is "twenty-three million, one hundred sixty-seven thousand, one hundred forty-four".