23540012 has 12 divisors (see below), whose sum is σ = 43363320. Its totient is φ = 11150496.

The previous prime is 23540009. The next prime is 23540021. The reversal of 23540012 is 21004532.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154793 + ... + 154944.

It is an arithmetic number, because the mean of its divisors is an integer number (3613610).

Almost surely, 2^23540012 is an apocalyptic number.

It is an amenable number.

23540012 is a deficient number, since it is larger than the sum of its proper divisors (19823308).

23540012 is a wasteful number, since it uses less digits than its factorization.

23540012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309760 (or 309758 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23540012 is about 4851.8050249366. The cubic root of 23540012 is about 286.5951873944.

Adding to 23540012 its reverse (21004532), we get a palindrome (44544544).

The spelling of 23540012 in words is "twenty-three million, five hundred forty thousand, twelve".