513042340 has 12 divisors (see below), whose sum is σ = 1077388956. Its totient is φ = 205216928.

The previous prime is 513042329. The next prime is 513042373. The reversal of 513042340 is 43240315.

It can be written as a sum of positive squares in 2 ways, for example, as 220700736 + 292341604 = 14856^2 + 17098^2 .

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, 12826039 + ... + 12826078.

It is an arithmetic number, because the mean of its divisors is an integer number (89782413).

Almost surely, 2^513042340 is an apocalyptic number.

It is an amenable number.

513042340 is an abundant number, since it is smaller than the sum of its proper divisors (564346616).

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

513042340 is a wasteful number, since it uses less digits than its factorization.

513042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25652126 (or 25652124 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 513042340 is about 22650.4379648606. The cubic root of 513042340 is about 800.5425174271.

Adding to 513042340 its reverse (43240315), we get a palindrome (556282655).

The spelling of 513042340 in words is "five hundred thirteen million, forty-two thousand, three hundred forty".