1281244 has 24 divisors (see below), whose sum is σ = 2343600. Its totient is φ = 612480.

The previous prime is 1281229. The next prime is 1281253. The reversal of 1281244 is 4421821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14352 + ... + 14440.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2^1281244 is an apocalyptic number.

It is an amenable number.

1281244 is a deficient number, since it is larger than the sum of its proper divisors (1062356).

1281244 is a wasteful number, since it uses less digits than its factorization.

1281244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 211 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 1281244 is about 1131.9204919074. The cubic root of 1281244 is about 108.6118676032.

The spelling of 1281244 in words is "one million, two hundred eighty-one thousand, two hundred forty-four".