505140304 has 20 divisors (see below), whose sum is σ = 988802164. Its totient is φ = 249965568.

The previous prime is 505140281. The next prime is 505140313. The reversal of 505140304 is 403041505.

It can be written as a sum of positive squares in 2 ways, for example, as 334890000 + 170250304 = 18300^2 + 13048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161187 + ... + 164290.

Almost surely, 2^505140304 is an apocalyptic number.

It is an amenable number.

505140304 is a deficient number, since it is larger than the sum of its proper divisors (483661860).

505140304 is a wasteful number, since it uses less digits than its factorization.

505140304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325582 (or 325576 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505140304 is about 22475.3265604752. The cubic root of 505140304 is about 796.4111660801.

Adding to 505140304 its reverse (403041505), we get a palindrome (908181809).

The spelling of 505140304 in words is "five hundred five million, one hundred forty thousand, three hundred four".