2666000 has 80 divisors (see below), whose sum is σ = 6809088. Its totient is φ = 1008000.

The previous prime is 2665973. The next prime is 2666021. The reversal of 2666000 is 6662.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61979 + ... + 62021.

2^2666000 is an apocalyptic number.

2666000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3404544).

2666000 is an abundant number, since it is smaller than the sum of its proper divisors (4143088).

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

2666000 is a wasteful number, since it uses less digits than its factorization.

2666000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2666000 is about 1632.7890249509. The cubic root of 2666000 is about 138.6606978858.

The spelling of 2666000 in words is "two million, six hundred sixty-six thousand".