513644466 has 8 divisors (see below), whose sum is σ = 1027288944. Its totient is φ = 171214820.

The previous prime is 513644449. The next prime is 513644513. The reversal of 513644466 is 664446315.

It is a sphenic number, since it is the product of 3 distinct primes.

513644466 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42803700 + ... + 42803711.

It is an arithmetic number, because the mean of its divisors is an integer number (128411118).

Almost surely, 2^513644466 is an apocalyptic number.

513644466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

513644466 is a wasteful number, since it uses less digits than its factorization.

513644466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85607416.

The product of its digits is 207360, while the sum is 39.

The square root of 513644466 is about 22663.7257749029. The cubic root of 513644466 is about 800.8555773664.

The spelling of 513644466 in words is "five hundred thirteen million, six hundred forty-four thousand, four hundred sixty-six".