23645242 has 12 divisors (see below), whose sum is σ = 37078650. Its totient is φ = 11308088.

The previous prime is 23645239. The next prime is 23645263. The reversal of 23645242 is 24254632.

It can be written as a sum of positive squares in only one way, i.e., 22667121 + 978121 = 4761^2 + 989^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23645242.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10117 + ... + 12232.

Almost surely, 2^23645242 is an apocalyptic number.

23645242 is a deficient number, since it is larger than the sum of its proper divisors (13433408).

23645242 is a wasteful number, since it uses less digits than its factorization.

23645242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22397 (or 22374 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 23645242 is about 4862.6373502452. The cubic root of 23645242 is about 287.0216043986.

Adding to 23645242 its reverse (24254632), we get a palindrome (47899874).

The spelling of 23645242 in words is "twenty-three million, six hundred forty-five thousand, two hundred forty-two".