23042642 has 24 divisors (see below), whose sum is σ = 41959296. Its totient is φ = 9445128.

The previous prime is 23042629. The next prime is 23042653. The reversal of 23042642 is 24624032.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2858 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (1748304).

Almost surely, 2^23042642 is an apocalyptic number.

23042642 is a deficient number, since it is larger than the sum of its proper divisors (18916654).

23042642 is a wasteful number, since it uses less digits than its factorization.

23042642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262 (or 10255 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 23042642 is about 4800.2752004442. The cubic root of 23042642 is about 284.5623404621.

Adding to 23042642 its reverse (24624032), we get a palindrome (47666674).

The spelling of 23042642 in words is "twenty-three million, forty-two thousand, six hundred forty-two".