2834728 has 32 divisors (see below), whose sum is σ = 5803560. Its totient is φ = 1290240.

The previous prime is 2834719. The next prime is 2834729. The reversal of 2834728 is 8274382.

It can be written as a sum of positive squares in 4 ways, for example, as 2125764 + 708964 = 1458^2 + 842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2834693 and 2834702.

It is not an unprimeable number, because it can be changed into a prime (2834729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9948 + ... + 10228.

2^2834728 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 2834728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2901780).

2834728 is an abundant number, since it is smaller than the sum of its proper divisors (2968832).

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

2834728 is a wasteful number, since it uses less digits than its factorization.

2834728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 393 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 2834728 is about 1683.6650498243. The cubic root of 2834728 is about 141.5262929411.

The spelling of 2834728 in words is "two million, eight hundred thirty-four thousand, seven hundred twenty-eight".