23540312 has 8 divisors (see below), whose sum is σ = 44138100. Its totient is φ = 11770152.

The previous prime is 23540303. The next prime is 23540323. The reversal of 23540312 is 21304532.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471262 + ... + 1471277.

Almost surely, 2^23540312 is an apocalyptic number.

It is an amenable number.

23540312 is a deficient number, since it is larger than the sum of its proper divisors (20597788).

23540312 is a wasteful number, since it uses less digits than its factorization.

23540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942545 (or 2942541 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23540312 is about 4851.8359411670. The cubic root of 23540312 is about 286.5964048703.

Adding to 23540312 its reverse (21304532), we get a palindrome (44844844).

The spelling of 23540312 in words is "twenty-three million, five hundred forty thousand, three hundred twelve".