506803940 has 12 divisors (see below), whose sum is σ = 1064288316. Its totient is φ = 202721568.

The previous prime is 506803939. The next prime is 506803943. The reversal of 506803940 is 49308605.

It can be written as a sum of positive squares in 2 ways, for example, as 206267044 + 300536896 = 14362^2 + 17336^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 506803940.

It is not an unprimeable number, because it can be changed into a prime (506803943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12670079 + ... + 12670118.

It is an arithmetic number, because the mean of its divisors is an integer number (88690693).

Almost surely, 2^506803940 is an apocalyptic number.

It is an amenable number.

506803940 is an abundant number, since it is smaller than the sum of its proper divisors (557484376).

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

506803940 is a wasteful number, since it uses less digits than its factorization.

506803940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25340206 (or 25340204 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 506803940 is about 22512.3064122715. The cubic root of 506803940 is about 797.2845118340.

The spelling of 506803940 in words is "five hundred six million, eight hundred three thousand, nine hundred forty".