2740665 has 8 divisors (see below), whose sum is σ = 4385088. Its totient is φ = 1461680.

The previous prime is 2740649. The next prime is 2740667. The reversal of 2740665 is 5660472.

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

It is not a de Polignac number, because 2740665 - 2⁴ = 2740649 is a prime.

It is a super-2 number, since 2×2740665² = 15022489284450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2740667) 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, 91341 + ... + 91370.

It is an arithmetic number, because the mean of its divisors is an integer number (548136).

2^2740665 is an apocalyptic number.

It is an amenable number.

2740665 is a deficient number, since it is larger than the sum of its proper divisors (1644423).

2740665 is a wasteful number, since it uses less digits than its factorization.

2740665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182719.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2740665 is about 1655.4953941343. The cubic root of 2740665 is about 139.9432593196.

The spelling of 2740665 in words is "two million, seven hundred forty thousand, six hundred sixty-five".