4343538816 has 160 divisors (see below), whose sum is σ = 13092393600. Its totient is φ = 1429249536.

The previous prime is 4343538809. The next prime is 4343538827. The reversal of 4343538816 is 6188353434.

4343538816 is a `hidden beast` number, since 4 + 34 + 3 + 538 + 81 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 816421 + ... + 821723.

It is an arithmetic number, because the mean of its divisors is an integer number (81827460).

Almost surely, 2^4343538816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4343538816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6546196800).

4343538816 is an abundant number, since it is smaller than the sum of its proper divisors (8748854784).

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

4343538816 is an equidigital number, since it uses as much as digits as its factorization.

4343538816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408 (or 5387 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 4343538816 is about 65905.5294797030. The cubic root of 4343538816 is about 1631.6032772709.

The spelling of 4343538816 in words is "four billion, three hundred forty-three million, five hundred thirty-eight thousand, eight hundred sixteen".