23157792 has 144 divisors (see below), whose sum is σ = 78714720. Its totient is φ = 6604416.

The previous prime is 23157773. The next prime is 23157809. The reversal of 23157792 is 29775132.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 42063 + ... + 42609.

It is an arithmetic number, because the mean of its divisors is an integer number (546630).

Almost surely, 2^23157792 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 23157792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39357360).

23157792 is an abundant number, since it is smaller than the sum of its proper divisors (55556928).

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

23157792 is a wasteful number, since it uses less digits than its factorization.

23157792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 559 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 23157792 is about 4812.2543573672. The cubic root of 23157792 is about 285.0355634291.

The spelling of 23157792 in words is "twenty-three million, one hundred fifty-seven thousand, seven hundred ninety-two".