4043647164 has 12 divisors (see below), whose sum is σ = 9435176744. Its totient is φ = 1347882384.

The previous prime is 4043647163. The next prime is 4043647177. The reversal of 4043647164 is 4617463404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043647163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168485287 + ... + 168485310.

Almost surely, 2^4043647164 is an apocalyptic number.

It is an amenable number.

4043647164 is an abundant number, since it is smaller than the sum of its proper divisors (5391529580).

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

4043647164 is a wasteful number, since it uses less digits than its factorization.

4043647164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336970604 (or 336970602 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 4043647164 is about 63589.6781246768. The cubic root of 4043647164 is about 1593.1539737103.

The spelling of 4043647164 in words is "four billion, forty-three million, six hundred forty-seven thousand, one hundred sixty-four".