1266382 has 16 divisors (see below), whose sum is σ = 2086560. Its totient is φ = 572832.

The previous prime is 1266379. The next prime is 1266389. The reversal of 1266382 is 2836621.

It is a self number, because there is not a number n which added to its sum of digits gives 1266382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (130410).

2^1266382 is an apocalyptic number.

1266382 is the 919-th pentagonal number.

1266382 is a deficient number, since it is larger than the sum of its proper divisors (820178).

1266382 is a wasteful number, since it uses less digits than its factorization.

1266382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its digits is 3456, while the sum is 28.

The square root of 1266382 is about 1125.3363941507. The cubic root of 1266382 is about 108.1902795572.

The spelling of 1266382 in words is "one million, two hundred sixty-six thousand, three hundred eighty-two".