431280440239 has 12 divisors (see below), whose sum is σ = 474646955832. Its totient is φ = 391581103760.

The previous prime is 431280440221. The next prime is 431280440257. The reversal of 431280440239 is 932044082134.

It is an interprime number because it is at equal distance from previous prime (431280440221) and next prime (431280440257).

It is not a de Polignac number, because 431280440239 - 2¹⁹ = 431279915951 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 (431280440209) 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 11 ways as a sum of consecutive naturals, for example, 2139637 + ... + 2332510.

It is an arithmetic number, because the mean of its divisors is an integer number (39553912986).

Almost surely, 2^431280440239 is an apocalyptic number.

431280440239 is a deficient number, since it is larger than the sum of its proper divisors (43366515593).

431280440239 is a wasteful number, since it uses less digits than its factorization.

431280440239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472966 (or 4472955 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 431280440239 in words is "four hundred thirty-one billion, two hundred eighty million, four hundred forty thousand, two hundred thirty-nine".