1276256 has 12 divisors (see below), whose sum is σ = 2512692. Its totient is φ = 638112.

The previous prime is 1276243. The next prime is 1276271. The reversal of 1276256 is 6526721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19910 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (209391).

2^1276256 is an apocalyptic number.

1276256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1276256 is a deficient number, since it is larger than the sum of its proper divisors (1236436).

1276256 is an equidigital number, since it uses as much as digits as its factorization.

1276256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39893 (or 39885 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1276256 is about 1129.7150083096. The cubic root of 1276256 is about 108.4707389930.

The spelling of 1276256 in words is "one million, two hundred seventy-six thousand, two hundred fifty-six".