2772428 has 12 divisors (see below), whose sum is σ = 5137272. Its totient is φ = 1304640.

The previous prime is 2772421. The next prime is 2772433. The reversal of 2772428 is 8242772.

It is a happy number.

2772428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2772394 and 2772403.

It is not an unprimeable number, because it can be changed into a prime (2772421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20318 + ... + 20453.

It is an arithmetic number, because the mean of its divisors is an integer number (428106).

2^2772428 is an apocalyptic number.

It is an amenable number.

2772428 is a deficient number, since it is larger than the sum of its proper divisors (2364844).

2772428 is a wasteful number, since it uses less digits than its factorization.

2772428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40792 (or 40790 counting only the distinct ones).

The product of its digits is 12544, while the sum is 32.

The square root of 2772428 is about 1665.0609598450. The cubic root of 2772428 is about 140.4818093410.

The spelling of 2772428 in words is "two million, seven hundred seventy-two thousand, four hundred twenty-eight".