4243337728 has 160 divisors (see below), whose sum is σ = 10023108480. Its totient is φ = 1757184000.

The previous prime is 4243337723. The next prime is 4243337737. The reversal of 4243337728 is 8277333424.

It is not an unprimeable number, because it can be changed into a prime (4243337723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16905603 + ... + 16905853.

It is an arithmetic number, because the mean of its divisors is an integer number (62644428).

Almost surely, 2^4243337728 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 4243337728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5011554240).

4243337728 is an abundant number, since it is smaller than the sum of its proper divisors (5779770752).

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

4243337728 is an equidigital number, since it uses as much as digits as its factorization.

4243337728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 402 counting only the distinct ones).

The product of its digits is 677376, while the sum is 43.

The square root of 4243337728 is about 65140.9067176686. The cubic root of 4243337728 is about 1618.9590589639.

The spelling of 4243337728 in words is "four billion, two hundred forty-three million, three hundred thirty-seven thousand, seven hundred twenty-eight".