2266666 has 4 divisors (see below), whose sum is σ = 3400002. Its totient is φ = 1133332.

The previous prime is 2266639. The next prime is 2266679. The reversal of 2266666 is 6666622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6666622 = 2 ⋅3333311.

It can be written as a sum of positive squares in only one way, i.e., 1256641 + 1010025 = 1121^2 + 1005^2 .

2266666 is a modest number, since divided by 6666 gives 226 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566665 + ... + 566668.

2^2266666 is an apocalyptic number.

2266666 is a deficient number, since it is larger than the sum of its proper divisors (1133336).

2266666 is a wasteful number, since it uses less digits than its factorization.

2266666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133335.

The product of its digits is 31104, while the sum is 34.

The square root of 2266666 is about 1505.5450840144. The cubic root of 2266666 is about 131.3598095390.

The spelling of 2266666 in words is "two million, two hundred sixty-six thousand, six hundred sixty-six".