1684436768 has 24 divisors (see below), whose sum is σ = 3789983232. Its totient is φ = 721901376.

The previous prime is 1684436759. The next prime is 1684436791. The reversal of 1684436768 is 8676344861.

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, 3759680 + ... + 3760127.

It is an arithmetic number, because the mean of its divisors is an integer number (157915968).

Almost surely, 2^1684436768 is an apocalyptic number.

It is an amenable number.

1684436768 is an abundant number, since it is smaller than the sum of its proper divisors (2105546464).

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

1684436768 is an equidigital number, since it uses as much as digits as its factorization.

1684436768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519824 (or 7519816 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The square root of 1684436768 is about 41041.8904048047. The cubic root of 1684436768 is about 1189.8299707639.

The spelling of 1684436768 in words is "one billion, six hundred eighty-four million, four hundred thirty-six thousand, seven hundred sixty-eight".