2666018 has 8 divisors (see below), whose sum is σ = 4017180. Its totient is φ = 1326960.

The previous prime is 2665973. The next prime is 2666021. The reversal of 2666018 is 8106662.

It can be written as a sum of positive squares in 2 ways, for example, as 2122849 + 543169 = 1457^2 + 737^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453 + ... + 3368.

2^2666018 is an apocalyptic number.

2666018 is a deficient number, since it is larger than the sum of its proper divisors (1351162).

2666018 is a wasteful number, since it uses less digits than its factorization.

2666018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6052.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2666018 is about 1632.7945369825. The cubic root of 2666018 is about 138.6610099496.

The spelling of 2666018 in words is "two million, six hundred sixty-six thousand, eighteen".