2743439 has 8 divisors (see below), whose sum is σ = 2872800. Its totient is φ = 2617056.

The previous prime is 2743423. The next prime is 2743457. The reversal of 2743439 is 9343472.

2743439 = 201² + 202² + ... + 253².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2743439 - 2⁴ = 2743423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

2^2743439 is an apocalyptic number.

2743439 is a deficient number, since it is larger than the sum of its proper divisors (129361).

2743439 is a wasteful number, since it uses less digits than its factorization.

2743439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489.

The product of its digits is 18144, while the sum is 32.

The square root of 2743439 is about 1656.3329979204. The cubic root of 2743439 is about 139.9904585334.

The spelling of 2743439 in words is "two million, seven hundred forty-three thousand, four hundred thirty-nine".