2740385 has 8 divisors (see below), whose sum is σ = 3312960. Its totient is φ = 2175984.

The previous prime is 2740379. The next prime is 2740393. The reversal of 2740385 is 5830472.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2740385 - 2¹⁶ = 2674849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (414120).

2^2740385 is an apocalyptic number.

It is an amenable number.

2740385 is a deficient number, since it is larger than the sum of its proper divisors (572575).

2740385 is a wasteful number, since it uses less digits than its factorization.

2740385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2740385 is about 1655.4108251428. The cubic root of 2740385 is about 139.9384933902.

It can be divided in two parts, 2740 and 385, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2740385 in words is "two million, seven hundred forty thousand, three hundred eighty-five".