513389830 has 16 divisors (see below), whose sum is σ = 925336080. Its totient is φ = 205081632.

The previous prime is 513389809. The next prime is 513389873. The reversal of 513389830 is 38983315.

513389830 = 416² + 417² + ... + 1172².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26340 + ... + 41479.

It is an arithmetic number, because the mean of its divisors is an integer number (57833505).

Almost surely, 2^513389830 is an apocalyptic number.

513389830 is a deficient number, since it is larger than the sum of its proper divisors (411946250).

513389830 is a wasteful number, since it uses less digits than its factorization.

513389830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68583.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 513389830 is about 22658.1073790376. The cubic root of 513389830 is about 800.7232157933.

The spelling of 513389830 in words is "five hundred thirteen million, three hundred eighty-nine thousand, eight hundred thirty".