513234660 has 24 divisors (see below), whose sum is σ = 1437057216. Its totient is φ = 136862560.

The previous prime is 513234649. The next prime is 513234737. The reversal of 513234660 is 66432315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4276896 + ... + 4277015.

It is an arithmetic number, because the mean of its divisors is an integer number (59877384).

Almost surely, 2^513234660 is an apocalyptic number.

It is an amenable number.

513234660 is an abundant number, since it is smaller than the sum of its proper divisors (923822556).

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

513234660 is a wasteful number, since it uses less digits than its factorization.

513234660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553923 (or 8553921 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 513234660 is about 22654.6829596002. The cubic root of 513234660 is about 800.6425358797.

Adding to 513234660 its reverse (66432315), we get a palindrome (579666975).

The spelling of 513234660 in words is "five hundred thirteen million, two hundred thirty-four thousand, six hundred sixty".