23002542 has 20 divisors (see below), whose sum is σ = 51543096. Its totient is φ = 7667460.

The previous prime is 23002531. The next prime is 23002543. The reversal of 23002542 is 24520032.

23002542 is nontrivially palindromic in base 13.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002543) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 70834 + ... + 71157.

Almost surely, 2^23002542 is an apocalyptic number.

23002542 is an abundant number, since it is smaller than the sum of its proper divisors (28540554).

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

23002542 is a wasteful number, since it uses less digits than its factorization.

23002542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142005 (or 141996 counting only the distinct ones).

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

The square root of 23002542 is about 4796.0965378107. The cubic root of 23002542 is about 284.3971745700.

Adding to 23002542 its reverse (24520032), we get a palindrome (47522574).

The spelling of 23002542 in words is "twenty-three million, two thousand, five hundred forty-two".