2728122 has 32 divisors (see below), whose sum is σ = 5816448. Its totient is φ = 851136.

The previous prime is 2728097. The next prime is 2728129. The reversal of 2728122 is 2218272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2728092 and 2728101.

It is not an unprimeable number, because it can be changed into a prime (2728129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7128 + ... + 7500.

It is an arithmetic number, because the mean of its divisors is an integer number (181764).

2^2728122 is an apocalyptic number.

2728122 is an abundant number, since it is smaller than the sum of its proper divisors (3088326).

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

2728122 is a wasteful number, since it uses less digits than its factorization.

2728122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its digits is 896, while the sum is 24.

The square root of 2728122 is about 1651.7027577624. The cubic root of 2728122 is about 139.7294434601.

It can be divided in two parts, 2728 and 122, that added together give a triangular number (2850 = T₇₅).

The spelling of 2728122 in words is "two million, seven hundred twenty-eight thousand, one hundred twenty-two".