2740393 has 2 divisors, whose sum is σ = 2740394. Its totient is φ = 2740392.

The previous prime is 2740379. The next prime is 2740403. The reversal of 2740393 is 3930472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1567504 + 1172889 = 1252^2 + 1083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2740393 - 2⁹ = 2739881 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2740333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370196 + 1370197.

It is an arithmetic number, because the mean of its divisors is an integer number (1370197).

2^2740393 is an apocalyptic number.

It is an amenable number.

2740393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740393 is an equidigital number, since it uses as much as digits as its factorization.

2740393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 2740393 is about 1655.4132414597. The cubic root of 2740393 is about 139.9386295642.

The spelling of 2740393 in words is "two million, seven hundred forty thousand, three hundred ninety-three".