234340013 has 4 divisors (see below), whose sum is σ = 234411708. Its totient is φ = 234268320.

The previous prime is 234340009. The next prime is 234340049. The reversal of 234340013 is 310043432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28761769 + 205578244 = 5363^2 + 14338^2 .

It is a cyclic number.

It is not a de Polignac number, because 234340013 - 2² = 234340009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234348013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30698 + ... + 37563.

It is an arithmetic number, because the mean of its divisors is an integer number (58602927).

Almost surely, 2^234340013 is an apocalyptic number.

It is an amenable number.

234340013 is a deficient number, since it is larger than the sum of its proper divisors (71695).

234340013 is an equidigital number, since it uses as much as digits as its factorization.

234340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71694.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 234340013 is about 15308.1681791127. The cubic root of 234340013 is about 616.5223378161.

Adding to 234340013 its reverse (310043432), we get a palindrome (544383445).

The spelling of 234340013 in words is "two hundred thirty-four million, three hundred forty thousand, thirteen".