2744287 has 16 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 2126592.

The previous prime is 2744279. The next prime is 2744297. The reversal of 2744287 is 7824472.

It is not a de Polignac number, because 2744287 - 2³ = 2744279 is a prime.

It is a super-2 number, since 2×2744287² = 15062222276738, which contains 22 as substring.

2744287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2744237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4539 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

2^2744287 is an apocalyptic number.

2744287 is a deficient number, since it is larger than the sum of its proper divisors (703073).

2744287 is a wasteful number, since it uses less digits than its factorization.

With its successor (2744288) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (642).

2744287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 25088, while the sum is 34.

The square root of 2744287 is about 1656.5889653140. The cubic root of 2744287 is about 140.0048807822.

It can be divided in two parts, 274428 and 7, that multiplied together give a square (1920996 = 1386²).

The spelling of 2744287 in words is "two million, seven hundred forty-four thousand, two hundred eighty-seven".