2740406 has 8 divisors (see below), whose sum is σ = 4143360. Its totient is φ = 1359288.

The previous prime is 2740403. The next prime is 2740421. The reversal of 2740406 is 6040472.

2740406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141 + ... + 5648.

It is an arithmetic number, because the mean of its divisors is an integer number (517920).

2^2740406 is an apocalyptic number.

2740406 is a deficient number, since it is larger than the sum of its proper divisors (1402954).

2740406 is a wasteful number, since it uses less digits than its factorization.

2740406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2740406 is about 1655.4171679670. The cubic root of 2740406 is about 139.9388508462.

Adding to 2740406 its reverse (6040472), we get a palindrome (8780878).

The spelling of 2740406 in words is "two million, seven hundred forty thousand, four hundred six".