1276544 has 16 divisors (see below), whose sum is σ = 2543370. Its totient is φ = 638208.

The previous prime is 1276543. The next prime is 1276571. The reversal of 1276544 is 4456721.

It can be written as a sum of positive squares in only one way, i.e., 1236544 + 40000 = 1112^2 + 200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1276543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4859 + ... + 5114.

2^1276544 is an apocalyptic number.

It is an amenable number.

1276544 is a deficient number, since it is larger than the sum of its proper divisors (1266826).

1276544 is an frugal number, since it uses more digits than its factorization.

1276544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987 (or 9975 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 1276544 is about 1129.8424668953. The cubic root of 1276544 is about 108.4788975503.

The spelling of 1276544 in words is "one million, two hundred seventy-six thousand, five hundred forty-four".