23540605 has 16 divisors (see below), whose sum is σ = 31881600. Its totient is φ = 16528960.

The previous prime is 23540603. The next prime is 23540611. The reversal of 23540605 is 50604532.

It is not a de Polignac number, because 23540605 - 2¹ = 23540603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23540605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5785 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1992600).

Almost surely, 2^23540605 is an apocalyptic number.

It is an amenable number.

23540605 is a deficient number, since it is larger than the sum of its proper divisors (8340995).

23540605 is a wasteful number, since it uses less digits than its factorization.

23540605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 23540605 is about 4851.8661358286. The cubic root of 23540605 is about 286.5975939284.

The spelling of 23540605 in words is "twenty-three million, five hundred forty thousand, six hundred five".