513940384 has 24 divisors (see below), whose sum is σ = 1026926208. Its totient is φ = 253133760.

The previous prime is 513940369. The next prime is 513940391. The reversal of 513940384 is 483049315.

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 3 ways as a sum of consecutive naturals, for example, 117712 + ... + 121999.

It is an arithmetic number, because the mean of its divisors is an integer number (42788592).

Almost surely, 2^513940384 is an apocalyptic number.

It is an amenable number.

513940384 is a deficient number, since it is larger than the sum of its proper divisors (512985824).

513940384 is a wasteful number, since it uses less digits than its factorization.

513940384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239788 (or 239780 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 513940384 is about 22670.2532848665. The cubic root of 513940384 is about 801.0093426653.

Adding to 513940384 its reverse (483049315), we get a palindrome (996989699).

The spelling of 513940384 in words is "five hundred thirteen million, nine hundred forty thousand, three hundred eighty-four".