23160042 has 12 divisors (see below), whose sum is σ = 50180130. Its totient is φ = 7720008.

The previous prime is 23160019. The next prime is 23160047. The reversal of 23160042 is 24006132.

It is a happy number.

23160042 is a `hidden beast` number, since 23 + 1 + 600 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18584721 + 4575321 = 4311^2 + 2139^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1286669 = 23160042 / (2 + 3 + 1 + 6 + 0 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 23159997 and 23160024.

It is not an unprimeable number, because it can be changed into a prime (23160047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643317 + ... + 643352.

Almost surely, 2^23160042 is an apocalyptic number.

23160042 is an abundant number, since it is smaller than the sum of its proper divisors (27020088).

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

23160042 is a wasteful number, since it uses less digits than its factorization.

23160042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286677 (or 1286674 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23160042 is about 4812.4881298555. The cubic root of 23160042 is about 285.0447944365.

Adding to 23160042 its reverse (24006132), we get a palindrome (47166174).

The spelling of 23160042 in words is "twenty-three million, one hundred sixty thousand, forty-two".