2740540657 has 8 divisors (see below), whose sum is σ = 2758039200. Its totient is φ = 2723066784.

The previous prime is 2740540609. The next prime is 2740540667. The reversal of 2740540657 is 7560450472.

2740540657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2740540657 - 2⁷ = 2740540529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2740540667) 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, 250069 + ... + 260797.

It is an arithmetic number, because the mean of its divisors is an integer number (344754900).

Almost surely, 2^2740540657 is an apocalyptic number.

It is an amenable number.

2740540657 is a deficient number, since it is larger than the sum of its proper divisors (17498543).

2740540657 is a wasteful number, since it uses less digits than its factorization.

2740540657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12335.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 2740540657 is about 52350.1734190060. The cubic root of 2740540657 is about 1399.4114289553.

The spelling of 2740540657 in words is "two billion, seven hundred forty million, five hundred forty thousand, six hundred fifty-seven".