513344340 has 72 divisors (see below), whose sum is σ = 1590301440. Its totient is φ = 133977024.

The previous prime is 513344339. The next prime is 513344353. The reversal of 513344340 is 43443315.

It is a super-2 number, since 2×513344340² = 527044822820071200, which contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 21880 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (22087520).

Almost surely, 2^513344340 is an apocalyptic number.

It is an amenable number.

513344340 is an abundant number, since it is smaller than the sum of its proper divisors (1076957100).

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

513344340 is a wasteful number, since it uses less digits than its factorization.

513344340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60741 (or 60736 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 513344340 is about 22657.1035218538. The cubic root of 513344340 is about 800.6995651657.

Adding to 513344340 its reverse (43443315), we get a palindrome (556787655).

The spelling of 513344340 in words is "five hundred thirteen million, three hundred forty-four thousand, three hundred forty".