1265868 has 30 divisors (see below), whose sum is σ = 3310076. Its totient is φ = 421848.

The previous prime is 1265867. The next prime is 1265899. The reversal of 1265868 is 8685621.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1265861) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1630 + ... + 2277.

2^1265868 is an apocalyptic number.

1265868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1265868 is an abundant number, since it is smaller than the sum of its proper divisors (2044208).

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

1265868 is a wasteful number, since it uses less digits than its factorization.

1265868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923 (or 3912 counting only the distinct ones).

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

The square root of 1265868 is about 1125.1079948165. The cubic root of 1265868 is about 108.1756401280.

The spelling of 1265868 in words is "one million, two hundred sixty-five thousand, eight hundred sixty-eight".