506831120 has 40 divisors (see below), whose sum is σ = 1179715416. Its totient is φ = 202503168.

The previous prime is 506831093. The next prime is 506831123. The reversal of 506831120 is 21138605.

It can be written as a sum of positive squares in 4 ways, for example, as 322849024 + 183982096 = 17968^2 + 13564^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 506831120.

It is not an unprimeable number, because it can be changed into a prime (506831123) 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, 79574 + ... + 85706.

Almost surely, 2^506831120 is an apocalyptic number.

It is an amenable number.

506831120 is an abundant number, since it is smaller than the sum of its proper divisors (672884296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506831120 is a wasteful number, since it uses less digits than its factorization.

506831120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7179 (or 7173 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 506831120 is about 22512.9100739998. The cubic root of 506831120 is about 797.2987644236.

Adding to 506831120 its reverse (21138605), we get a palindrome (527969725).

The spelling of 506831120 in words is "five hundred six million, eight hundred thirty-one thousand, one hundred twenty".