1266588 has 36 divisors (see below), whose sum is σ = 3236688. Its totient is φ = 417600.

The previous prime is 1266583. The next prime is 1266589. The reversal of 1266588 is 8856621.

It is a happy number.

1266588 is a `hidden beast` number, since 12 + 66 + 588 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266583) 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 11 ways as a sum of consecutive naturals, for example, 5320 + ... + 5552.

It is an arithmetic number, because the mean of its divisors is an integer number (89908).

2^1266588 is an apocalyptic number.

1266588 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1266588 is an abundant number, since it is smaller than the sum of its proper divisors (1970100).

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

1266588 is a wasteful number, since it uses less digits than its factorization.

1266588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 389 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 1266588 is about 1125.4279186158. The cubic root of 1266588 is about 108.1961456095.

The spelling of 1266588 in words is "one million, two hundred sixty-six thousand, five hundred eighty-eight".