2740743 has 16 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 1803672.

The previous prime is 2740739. The next prime is 2740763. The reversal of 2740743 is 3470472.

It is not a de Polignac number, because 2740743 - 2² = 2740739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630 + ... + 2852.

It is an arithmetic number, because the mean of its divisors is an integer number (257040).

2^2740743 is an apocalyptic number.

2740743 is a deficient number, since it is larger than the sum of its proper divisors (1371897).

2740743 is a wasteful number, since it uses less digits than its factorization.

2740743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 2740743 is about 1655.5189518698. The cubic root of 2740743 is about 139.9445869135.

The spelling of 2740743 in words is "two million, seven hundred forty thousand, seven hundred forty-three".