2740312 has 32 divisors (see below), whose sum is σ = 5482080. Its totient is φ = 1281280.

The previous prime is 2740301. The next prime is 2740319. The reversal of 2740312 is 2130472.

It is a self number, because there is not a number n which added to its sum of digits gives 2740312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740319) 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, 9612 + ... + 9892.

It is an arithmetic number, because the mean of its divisors is an integer number (171315).

2^2740312 is an apocalyptic number.

It is an amenable number.

2740312 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2740312 is a wasteful number, since it uses less digits than its factorization.

2740312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2740312 is about 1655.3887760886. The cubic root of 2740312 is about 139.9372507910.

Adding to 2740312 its reverse (2130472), we get a palindrome (4870784).

The spelling of 2740312 in words is "two million, seven hundred forty thousand, three hundred twelve".