23107842 has 40 divisors (see below), whose sum is σ = 52080336. Its totient is φ = 7689492.

The previous prime is 23107829. The next prime is 23107853. The reversal of 23107842 is 24870132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39073 + ... + 39659.

Almost surely, 2^23107842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23107842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26040168).

23107842 is an abundant number, since it is smaller than the sum of its proper divisors (28972494).

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

23107842 is an frugal number, since it uses more digits than its factorization.

23107842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 23107842 is about 4807.0616804863. The cubic root of 23107842 is about 284.8304809068.

Adding to 23107842 its reverse (24870132), we get a palindrome (47977974).

The spelling of 23107842 in words is "twenty-three million, one hundred seven thousand, eight hundred forty-two".