506731844 has 12 divisors (see below), whose sum is σ = 894917100. Its totient is φ = 251041248.

The previous prime is 506731829. The next prime is 506731879. The reversal of 506731844 is 448137605.

It can be written as a sum of positive squares in 2 ways, for example, as 321771844 + 184960000 = 17938^2 + 13600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 506731798 and 506731807.

It is an unprimeable number.

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, 580679 + ... + 581550.

It is an arithmetic number, because the mean of its divisors is an integer number (74576425).

Almost surely, 2^506731844 is an apocalyptic number.

It is an amenable number.

506731844 is a deficient number, since it is larger than the sum of its proper divisors (388185256).

506731844 is a wasteful number, since it uses less digits than its factorization.

506731844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162342 (or 1162340 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 506731844 is about 22510.7050977974. The cubic root of 506731844 is about 797.2467038209.

The spelling of 506731844 in words is "five hundred six million, seven hundred thirty-one thousand, eight hundred forty-four".