2740443 has 8 divisors (see below), whose sum is σ = 3670800. Its totient is φ = 1818528.

The previous prime is 2740421. The next prime is 2740453. The reversal of 2740443 is 3440472.

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

It is not a de Polignac number, because 2740443 - 2⁶ = 2740379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2740403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308 + ... + 2681.

It is an arithmetic number, because the mean of its divisors is an integer number (458850).

2^2740443 is an apocalyptic number.

2740443 is a deficient number, since it is larger than the sum of its proper divisors (930357).

2740443 is a wasteful number, since it uses less digits than its factorization.

2740443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 2740443 is about 1655.4283433601. The cubic root of 2740443 is about 139.9394806451.

It can be divided in two parts, 27 and 40443, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 2740443 in words is "two million, seven hundred forty thousand, four hundred forty-three".