2740263 has 4 divisors (see below), whose sum is σ = 3653688. Its totient is φ = 1826840.

The previous prime is 2740249. The next prime is 2740267. The reversal of 2740263 is 3620472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2740263 - 2¹⁰ = 2739239 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456708 + ... + 456713.

It is an arithmetic number, because the mean of its divisors is an integer number (913422).

2^2740263 is an apocalyptic number.

2740263 is a deficient number, since it is larger than the sum of its proper divisors (913425).

2740263 is an equidigital number, since it uses as much as digits as its factorization.

2740263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913424.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 2740263 is about 1655.3739758737. The cubic root of 2740263 is about 139.9364167052.

It can be divided in two parts, 2740 and 263, that added together give a palindrome (3003).

The spelling of 2740263 in words is "two million, seven hundred forty thousand, two hundred sixty-three".