23540364 has 18 divisors (see below), whose sum is σ = 59504900. Its totient is φ = 7846776.

The previous prime is 23540357. The next prime is 23540369. The reversal of 23540364 is 46304532.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (23540369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326914 + ... + 326985.

Almost surely, 2^23540364 is an apocalyptic number.

It is an amenable number.

23540364 is an abundant number, since it is smaller than the sum of its proper divisors (35964536).

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

23540364 is a wasteful number, since it uses less digits than its factorization.

23540364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653909 (or 653904 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 23540364 is about 4851.8412999603. The cubic root of 23540364 is about 286.5966158984.

Adding to 23540364 its reverse (46304532), we get a palindrome (69844896).

The spelling of 23540364 in words is "twenty-three million, five hundred forty thousand, three hundred sixty-four".