2740387 has 8 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 2493120.

The previous prime is 2740379. The next prime is 2740393. The reversal of 2740387 is 7830472.

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 2740387 - 2³ = 2740379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2740337) 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, 562 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (374220).

2^2740387 is an apocalyptic number.

2740387 is a deficient number, since it is larger than the sum of its proper divisors (253373).

2740387 is a wasteful number, since it uses less digits than its factorization.

2740387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 2740387 is about 1655.4114292224. The cubic root of 2740387 is about 139.9385274337.

The spelling of 2740387 in words is "two million, seven hundred forty thousand, three hundred eighty-seven".