1268506 has 8 divisors (see below), whose sum is σ = 2014740. Its totient is φ = 596928.

The previous prime is 1268479. The next prime is 1268537. The reversal of 1268506 is 6058621.

It can be written as a sum of positive squares in 2 ways, for example, as 1243225 + 25281 = 1115^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18621 + ... + 18688.

2^1268506 is an apocalyptic number.

1268506 is a deficient number, since it is larger than the sum of its proper divisors (746234).

1268506 is a wasteful number, since it uses less digits than its factorization.

1268506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1268506 is about 1126.2797165891. The cubic root of 1268506 is about 108.2507320380.

The spelling of 1268506 in words is "one million, two hundred sixty-eight thousand, five hundred six".