1276288 has 48 divisors (see below), whose sum is σ = 2799900. Its totient is φ = 579072.

The previous prime is 1276279. The next prime is 1276307. The reversal of 1276288 is 8826721.

It is a super-2 number, since 2×1276288² = 3257822117888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21603 + ... + 21661.

2^1276288 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 1276288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399950).

1276288 is an abundant number, since it is smaller than the sum of its proper divisors (1523612).

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

1276288 is an equidigital number, since it uses as much as digits as its factorization.

1276288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 74 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 1276288 is about 1129.7291710848. The cubic root of 1276288 is about 108.4716455599.

The spelling of 1276288 in words is "one million, two hundred seventy-six thousand, two hundred eighty-eight".