513838830 has 64 divisors (see below), whose sum is σ = 1254113280. Its totient is φ = 134720256.

The previous prime is 513838811. The next prime is 513838841. The reversal of 513838830 is 38838315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594979 + ... + 595841.

It is an arithmetic number, because the mean of its divisors is an integer number (19595520).

Almost surely, 2^513838830 is an apocalyptic number.

513838830 is an abundant number, since it is smaller than the sum of its proper divisors (740274450).

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

513838830 is a wasteful number, since it uses less digits than its factorization.

513838830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 513838830 is about 22668.0133668568. The cubic root of 513838830 is about 800.9565796965.

The spelling of 513838830 in words is "five hundred thirteen million, eight hundred thirty-eight thousand, eight hundred thirty".