431768349 has 6 divisors (see below), whose sum is σ = 623665406. Its totient is φ = 287845560.

The previous prime is 431768299. The next prime is 431768371. The reversal of 431768349 is 943867134.

It can be written as a sum of positive squares in only one way, i.e., 261857124 + 169911225 = 16182^2 + 13035^2 .

It is not a de Polignac number, because 431768349 - 2¹⁶ = 431702813 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 (431768149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23987122 + ... + 23987139.

Almost surely, 2^431768349 is an apocalyptic number.

It is an amenable number.

431768349 is a deficient number, since it is larger than the sum of its proper divisors (191897057).

431768349 is a wasteful number, since it uses less digits than its factorization.

431768349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47974267 (or 47974264 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 431768349 is about 20779.0362866039. The cubic root of 431768349 is about 755.8174844948.

The spelling of 431768349 in words is "four hundred thirty-one million, seven hundred sixty-eight thousand, three hundred forty-nine".