2728244 has 12 divisors (see below), whose sum is σ = 4800768. Its totient is φ = 1356600.

The previous prime is 2728241. The next prime is 2728247. The reversal of 2728244 is 4428272.

It is an interprime number because it is at equal distance from previous prime (2728241) and next prime (2728247).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728241) 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, 1022 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (400064).

2^2728244 is an apocalyptic number.

It is an amenable number.

2728244 is a deficient number, since it is larger than the sum of its proper divisors (2072524).

2728244 is a wasteful number, since it uses less digits than its factorization.

2728244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3764 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 2728244 is about 1651.7396889341. The cubic root of 2728244 is about 139.7315263017.

The spelling of 2728244 in words is "two million, seven hundred twenty-eight thousand, two hundred forty-four".