1265808 has 20 divisors (see below), whose sum is σ = 3270128. Its totient is φ = 421920.

The previous prime is 1265801. The next prime is 1265813. The reversal of 1265808 is 8085621.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1265801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13138 + ... + 13233.

2^1265808 is an apocalyptic number.

It is an amenable number.

1265808 is an abundant number, since it is smaller than the sum of its proper divisors (2004320).

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

1265808 is a wasteful number, since it uses less digits than its factorization.

1265808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26382 (or 26376 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1265808 is about 1125.0813303935. The cubic root of 1265808 is about 108.1739309869.

The spelling of 1265808 in words is "one million, two hundred sixty-five thousand, eight hundred eight".