1966266 has 24 divisors (see below), whose sum is σ = 4286100. Its totient is φ = 651456.

The previous prime is 1966259. The next prime is 1966297. The reversal of 1966266 is 6626691.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 103041 = 1365^2 + 321^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1966266.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5460 + ... + 5808.

2^1966266 is an apocalyptic number.

1966266 is an abundant number, since it is smaller than the sum of its proper divisors (2319834).

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

1966266 is a wasteful number, since it uses less digits than its factorization.

1966266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 667 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1966266 is about 1402.2360714231. The cubic root of 1966266 is about 125.2797149429.

The spelling of 1966266 in words is "one million, nine hundred sixty-six thousand, two hundred sixty-six".