2740866 has 8 divisors (see below), whose sum is σ = 5481744. Its totient is φ = 913620.

The previous prime is 2740853. The next prime is 2740867. The reversal of 2740866 is 6680472.

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

2740866 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2740867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228400 + ... + 228411.

It is an arithmetic number, because the mean of its divisors is an integer number (685218).

2^2740866 is an apocalyptic number.

2740866 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.

2740866 is a wasteful number, since it uses less digits than its factorization.

2740866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456816.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2740866 is about 1655.5560999253. The cubic root of 2740866 is about 139.9466803758.

The spelling of 2740866 in words is "two million, seven hundred forty thousand, eight hundred sixty-six".