23400913 has 8 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 21205008.

The previous prime is 23400907. The next prime is 23400929. The reversal of 23400913 is 31900432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23400913 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (23400973) 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 7 ways as a sum of consecutive naturals, for example, 26338 + ... + 27211.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2^23400913 is an apocalyptic number.

23400913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23400913 is a deficient number, since it is larger than the sum of its proper divisors (2303087).

23400913 is a wasteful number, since it uses less digits than its factorization.

23400913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53591.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23400913 is about 4837.4490178192. The cubic root of 23400913 is about 286.0295705158.

The spelling of 23400913 in words is "twenty-three million, four hundred thousand, nine hundred thirteen".