23340513 has 24 divisors (see below), whose sum is σ = 36656928. Its totient is φ = 13169856.

The previous prime is 23340503. The next prime is 23340547. The reversal of 23340513 is 31504332.

It is not a de Polignac number, because 23340513 - 2⁵ = 23340481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23340513.

It is not an unprimeable number, because it can be changed into a prime (23340503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11245 + ... + 13157.

It is an arithmetic number, because the mean of its divisors is an integer number (1527372).

Almost surely, 2^23340513 is an apocalyptic number.

It is an amenable number.

23340513 is a deficient number, since it is larger than the sum of its proper divisors (13316415).

23340513 is a wasteful number, since it uses less digits than its factorization.

23340513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23340513 is about 4831.2020243414. The cubic root of 23340513 is about 285.7832685696.

Adding to 23340513 its reverse (31504332), we get a palindrome (54844845).

The spelling of 23340513 in words is "twenty-three million, three hundred forty thousand, five hundred thirteen".