834309728 has 96 divisors (see below), whose sum is σ = 1988872704. Its totient is φ = 336771072.

The previous prime is 834309719. The next prime is 834309739. The reversal of 834309728 is 827903438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343976 + ... + 346392.

It is an arithmetic number, because the mean of its divisors is an integer number (20717424).

Almost surely, 2^834309728 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 834309728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994436352).

834309728 is an abundant number, since it is smaller than the sum of its proper divisors (1154562976).

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

834309728 is a wasteful number, since it uses less digits than its factorization.

834309728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 834309728 is about 28884.4201603563. The cubic root of 834309728 is about 941.4034144569.

The spelling of 834309728 in words is "eight hundred thirty-four million, three hundred nine thousand, seven hundred twenty-eight".