23340813 has 16 divisors (see below), whose sum is σ = 33514560. Its totient is φ = 14395136.

The previous prime is 23340803. The next prime is 23340817. The reversal of 23340813 is 31804332.

It is a cyclic number.

It is not a de Polignac number, because 23340813 - 2⁵ = 23340781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23340817) 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 15 ways as a sum of consecutive naturals, for example, 870 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (2094660).

Almost surely, 2^23340813 is an apocalyptic number.

It is an amenable number.

23340813 is a deficient number, since it is larger than the sum of its proper divisors (10173747).

23340813 is a wasteful number, since it uses less digits than its factorization.

23340813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23340813 is about 4831.2330724154. The cubic root of 23340813 is about 285.7844929731.

The spelling of 23340813 in words is "twenty-three million, three hundred forty thousand, eight hundred thirteen".