4340431349 has 4 divisors (see below), whose sum is σ = 4341254220. Its totient is φ = 4339608480.

The previous prime is 4340431321. The next prime is 4340431357. The reversal of 4340431349 is 9431340434.

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 595848100 + 3744583249 = 24410^2 + 61193^2 .

It is a cyclic number.

It is not a de Polignac number, because 4340431349 - 2¹² = 4340427253 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 (4340431049) 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, 403472 + ... + 414089.

It is an arithmetic number, because the mean of its divisors is an integer number (1085313555).

Almost surely, 2^4340431349 is an apocalyptic number.

It is an amenable number.

4340431349 is a deficient number, since it is larger than the sum of its proper divisors (822871).

4340431349 is an equidigital number, since it uses as much as digits as its factorization.

4340431349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822870.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 4340431349 is about 65881.9501001602. The cubic root of 4340431349 is about 1631.2140890124.

The spelling of 4340431349 in words is "four billion, three hundred forty million, four hundred thirty-one thousand, three hundred forty-nine".