2774144 has 16 divisors (see below), whose sum is σ = 5526870. Its totient is φ = 1387008.

The previous prime is 2774143. The next prime is 2774173. The reversal of 2774144 is 4414772.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 1236544 = 1240^2 + 1112^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (2774141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10709 + ... + 10964.

2^2774144 is an apocalyptic number.

It is an amenable number.

2774144 is a deficient number, since it is larger than the sum of its proper divisors (2752726).

2774144 is an equidigital number, since it uses as much as digits as its factorization.

2774144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21687 (or 21675 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 2774144 is about 1665.5761765827. The cubic root of 2774144 is about 140.5107871979.

The spelling of 2774144 in words is "two million, seven hundred seventy-four thousand, one hundred forty-four".