2345906399 has 4 divisors (see below), whose sum is σ = 2346008136. Its totient is φ = 2345804664.

The previous prime is 2345906377. The next prime is 2345906417. The reversal of 2345906399 is 9936095432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2345906399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345900399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117 + ... + 68529.

It is an arithmetic number, because the mean of its divisors is an integer number (586502034).

Almost surely, 2^2345906399 is an apocalyptic number.

2345906399 is a deficient number, since it is larger than the sum of its proper divisors (101737).

2345906399 is an equidigital number, since it uses as much as digits as its factorization.

2345906399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101736.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The square root of 2345906399 is about 48434.5579003257. The cubic root of 2345906399 is about 1328.7304672036.

The spelling of 2345906399 in words is "two billion, three hundred forty-five million, nine hundred six thousand, three hundred ninety-nine".