2866266 has 40 divisors (see below), whose sum is σ = 6921684. Its totient is φ = 881280.

The previous prime is 2866261. The next prime is 2866267. The reversal of 2866266 is 6626682.

2866266 is a `hidden beast` number, since 28 + 6 + 626 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2480625 + 385641 = 1575^2 + 621^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2866266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1426 + ... + 2786.

2^2866266 is an apocalyptic number.

2866266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2866266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3460842).

2866266 is an abundant number, since it is smaller than the sum of its proper divisors (4055418).

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

2866266 is a wasteful number, since it uses less digits than its factorization.

2866266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1379 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2866266 is about 1693.0050206659. The cubic root of 2866266 is about 142.0492125927.

The spelling of 2866266 in words is "two million, eight hundred sixty-six thousand, two hundred sixty-six".