506840439 has 8 divisors (see below), whose sum is σ = 772328320. Its totient is φ = 289623096.

The previous prime is 506840437. The next prime is 506840471. The reversal of 506840439 is 934048605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 506840439 - 2¹ = 506840437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506840397 and 506840406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506840437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12067609 + ... + 12067650.

It is an arithmetic number, because the mean of its divisors is an integer number (96541040).

Almost surely, 2^506840439 is an apocalyptic number.

506840439 is a deficient number, since it is larger than the sum of its proper divisors (265487881).

506840439 is a wasteful number, since it uses less digits than its factorization.

506840439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24135269.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 506840439 is about 22513.1170431817. The cubic root of 506840439 is about 797.3036509833.

The spelling of 506840439 in words is "five hundred six million, eight hundred forty thousand, four hundred thirty-nine".