1265888 has 48 divisors (see below), whose sum is σ = 2857680. Its totient is φ = 546816.

The previous prime is 1265867. The next prime is 1265899. The reversal of 1265888 is 8885621.

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, 6983 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (59535).

2^1265888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428840).

1265888 is an abundant number, since it is smaller than the sum of its proper divisors (1591792).

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

1265888 is a wasteful number, since it uses less digits than its factorization.

1265888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 1265888 is about 1125.1168828171. The cubic root of 1265888 is about 108.1762098297.

The spelling of 1265888 in words is "one million, two hundred sixty-five thousand, eight hundred eighty-eight".