3431402305 has 4 divisors (see below), whose sum is σ = 4117682772. Its totient is φ = 2745121840.

The previous prime is 3431402297. The next prime is 3431402309. The reversal of 3431402305 is 5032041343.

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 1037355264 + 2394047041 = 32208^2 + 48929^2 .

It is not a de Polignac number, because 3431402305 - 2³ = 3431402297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3431402305.

It is not an unprimeable number, because it can be changed into a prime (3431402309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343140226 + ... + 343140235.

It is an arithmetic number, because the mean of its divisors is an integer number (1029420693).

Almost surely, 2^3431402305 is an apocalyptic number.

It is an amenable number.

3431402305 is a deficient number, since it is larger than the sum of its proper divisors (686280467).

3431402305 is an equidigital number, since it uses as much as digits as its factorization.

3431402305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686280466.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3431402305 is about 58578.1725986736. The cubic root of 3431402305 is about 1508.3097770979.

Adding to 3431402305 its reverse (5032041343), we get a palindrome (8463443648).

The spelling of 3431402305 in words is "three billion, four hundred thirty-one million, four hundred two thousand, three hundred five".