2740449 has 4 divisors (see below), whose sum is σ = 3653936. Its totient is φ = 1826964.

The previous prime is 2740421. The next prime is 2740453. The reversal of 2740449 is 9440472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2740449 - 2¹⁶ = 2674913 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2740459) 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, 456739 + ... + 456744.

It is an arithmetic number, because the mean of its divisors is an integer number (913484).

2^2740449 is an apocalyptic number.

It is an amenable number.

2740449 is a deficient number, since it is larger than the sum of its proper divisors (913487).

2740449 is an equidigital number, since it uses as much as digits as its factorization.

2740449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913486.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2740449 is about 1655.4301555789. The cubic root of 2740449 is about 139.9395827741.

The spelling of 2740449 in words is "two million, seven hundred forty thousand, four hundred forty-nine".