1266836382 has 32 divisors (see below), whose sum is σ = 3217363200. Its totient is φ = 361953144.

The previous prime is 1266836371. The next prime is 1266836411. The reversal of 1266836382 is 2836386621.

It is a happy number.

1266836382 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 8 + 3 + 638 + 2 = 666.

It is a congruent number.

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, 1675332 + ... + 1676087.

It is an arithmetic number, because the mean of its divisors is an integer number (100542600).

Almost surely, 2^1266836382 is an apocalyptic number.

1266836382 is an abundant number, since it is smaller than the sum of its proper divisors (1950526818).

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

1266836382 is a wasteful number, since it uses less digits than its factorization.

1266836382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351437 (or 3351431 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 1266836382 is about 35592.6450548424. The cubic root of 1266836382 is about 1082.0321768522.

The spelling of 1266836382 in words is "one billion, two hundred sixty-six million, eight hundred thirty-six thousand, three hundred eighty-two".