1265838 has 16 divisors (see below), whose sum is σ = 2893440. Its totient is φ = 361656.

The previous prime is 1265827. The next prime is 1265843. The reversal of 1265838 is 8385621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1265799 and 1265808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15028 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (180840).

2^1265838 is an apocalyptic number.

1265838 is an abundant number, since it is smaller than the sum of its proper divisors (1627602).

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

1265838 is a wasteful number, since it uses less digits than its factorization.

1265838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30151.

The product of its digits is 11520, while the sum is 33.

The square root of 1265838 is about 1125.0946626840. The cubic root of 1265838 is about 108.1747855642.

The spelling of 1265838 in words is "one million, two hundred sixty-five thousand, eight hundred thirty-eight".