2774728 has 16 divisors (see below), whose sum is σ = 5675760. Its totient is φ = 1261200.

The previous prime is 2774719. The next prime is 2774729. The reversal of 2774728 is 8274772.

It is not an unprimeable number, because it can be changed into a prime (2774729) 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, 15678 + ... + 15853.

It is an arithmetic number, because the mean of its divisors is an integer number (354735).

2^2774728 is an apocalyptic number.

It is an amenable number.

2774728 is an abundant number, since it is smaller than the sum of its proper divisors (2901032).

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

2774728 is a wasteful number, since it uses less digits than its factorization.

2774728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548 (or 31544 counting only the distinct ones).

The product of its digits is 43904, while the sum is 37.

The square root of 2774728 is about 1665.7514820645. The cubic root of 2774728 is about 140.5206464004.

It can be divided in two parts, 277 and 4728, that added together give a palindrome (5005).

The spelling of 2774728 in words is "two million, seven hundred seventy-four thousand, seven hundred twenty-eight".