23157936 has 60 divisors (see below), whose sum is σ = 65727688. Its totient is φ = 7610112.

The previous prime is 23157853. The next prime is 23157943. The reversal of 23157936 is 63975132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23157936.

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, 9411 + ... + 11613.

Almost surely, 2^23157936 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 23157936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32863844).

23157936 is an abundant number, since it is smaller than the sum of its proper divisors (42569752).

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

23157936 is a wasteful number, since it uses less digits than its factorization.

23157936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2281 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 23157936 is about 4812.2693191466. The cubic root of 23157936 is about 285.0361542315.

The spelling of 23157936 in words is "twenty-three million, one hundred fifty-seven thousand, nine hundred thirty-six".