23502042 has 16 divisors (see below), whose sum is σ = 52226880. Its totient is φ = 7833996.

The previous prime is 23502023. The next prime is 23502047. The reversal of 23502042 is 24020532.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23502047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217558 + ... + 217665.

It is an arithmetic number, because the mean of its divisors is an integer number (3264180).

Almost surely, 2^23502042 is an apocalyptic number.

23502042 is an abundant number, since it is smaller than the sum of its proper divisors (28724838).

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

23502042 is a wasteful number, since it uses less digits than its factorization.

23502042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435234 (or 435228 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23502042 is about 4847.8904690597. The cubic root of 23502042 is about 286.4410119504.

Adding to 23502042 its reverse (24020532), we get a palindrome (47522574).

The spelling of 23502042 in words is "twenty-three million, five hundred two thousand, forty-two".