2728198 has 16 divisors (see below), whose sum is σ = 4490640. Its totient is φ = 1232800.

The previous prime is 2728171. The next prime is 2728199. The reversal of 2728198 is 8918272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728199) 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, 5688 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (280665).

2^2728198 is an apocalyptic number.

2728198 is a deficient number, since it is larger than the sum of its proper divisors (1762442).

2728198 is a wasteful number, since it uses less digits than its factorization.

2728198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its digits is 16128, while the sum is 37.

The square root of 2728198 is about 1651.7257641630. The cubic root of 2728198 is about 139.7307409752.

It can be divided in two parts, 2728 and 198, that added together give a triangular number (2926 = T₇₆).

The spelling of 2728198 in words is "two million, seven hundred twenty-eight thousand, one hundred ninety-eight".