2740938666 has 8 divisors (see below), whose sum is σ = 5481877344. Its totient is φ = 913646220.

The previous prime is 2740938659. The next prime is 2740938677. The reversal of 2740938666 is 6668390472.

It is a happy number.

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

2740938666 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228411550 + ... + 228411561.

It is an arithmetic number, because the mean of its divisors is an integer number (685234668).

Almost surely, 2^2740938666 is an apocalyptic number.

2740938666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2740938666 is a wasteful number, since it uses less digits than its factorization.

2740938666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456823116.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 2740938666 is about 52353.9746915170. The cubic root of 2740938666 is about 1399.4791712310.

The spelling of 2740938666 in words is "two billion, seven hundred forty million, nine hundred thirty-eight thousand, six hundred sixty-six".