2745743 has 24 divisors (see below), whose sum is σ = 3724416. Its totient is φ = 1965600.

The previous prime is 2745737. The next prime is 2745761. The reversal of 2745743 is 3475472.

It is not a de Polignac number, because 2745743 - 2¹⁰ = 2744719 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 (2745643) 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 23 ways as a sum of consecutive naturals, for example, 12908 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (155184).

2^2745743 is an apocalyptic number.

2745743 is a deficient number, since it is larger than the sum of its proper divisors (978673).

2745743 is a wasteful number, since it uses less digits than its factorization.

2745743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its digits is 23520, while the sum is 32.

The square root of 2745743 is about 1657.0283642714. The cubic root of 2745743 is about 140.0296365829.

The spelling of 2745743 in words is "two million, seven hundred forty-five thousand, seven hundred forty-three".