3439047728 has 40 divisors (see below), whose sum is σ = 7033500720. Its totient is φ = 1628970624.

The previous prime is 3439047721. The next prime is 3439047743. The reversal of 3439047728 is 8277409343.

It is not an unprimeable number, because it can be changed into a prime (3439047721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94076 + ... + 125412.

It is an arithmetic number, because the mean of its divisors is an integer number (175837518).

Almost surely, 2^3439047728 is an apocalyptic number.

3439047728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3439047728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3516750360).

3439047728 is an abundant number, since it is smaller than the sum of its proper divisors (3594452992).

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

3439047728 is an equidigital number, since it uses as much as digits as its factorization.

3439047728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31402 (or 31358 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 3439047728 is about 58643.3945811461. The cubic root of 3439047728 is about 1509.4291554500.

The spelling of 3439047728 in words is "three billion, four hundred thirty-nine million, forty-seven thousand, seven hundred twenty-eight".