2744778 has 16 divisors (see below), whose sum is σ = 5778720. Its totient is φ = 866736.

The previous prime is 2744773. The next prime is 2744779. The reversal of 2744778 is 8774472.

2744778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2744773) 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 7 ways as a sum of consecutive naturals, for example, 11925 + ... + 12152.

It is an arithmetic number, because the mean of its divisors is an integer number (361170).

2^2744778 is an apocalyptic number.

2744778 is an abundant number, since it is smaller than the sum of its proper divisors (3033942).

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

2744778 is a wasteful number, since it uses less digits than its factorization.

2744778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24101.

The product of its digits is 87808, while the sum is 39.

The square root of 2744778 is about 1656.7371547714. The cubic root of 2744778 is about 140.0132300422.

The spelling of 2744778 in words is "two million, seven hundred forty-four thousand, seven hundred seventy-eight".