2709728 has 24 divisors (see below), whose sum is σ = 6097392. Its totient is φ = 1161216.

The previous prime is 2709727. The next prime is 2709737. The reversal of 2709728 is 8279072.

2709728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2709727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5825 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (254058).

2^2709728 is an apocalyptic number.

2709728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2709728 is an abundant number, since it is smaller than the sum of its proper divisors (3387664).

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

2709728 is a wasteful number, since it uses less digits than its factorization.

2709728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114 (or 12106 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2709728 is about 1646.1251471258. The cubic root of 2709728 is about 139.4146992892.

The spelling of 2709728 in words is "two million, seven hundred nine thousand, seven hundred twenty-eight".