1281044 has 12 divisors (see below), whose sum is σ = 2314368. Its totient is φ = 619800.

The previous prime is 1281043. The next prime is 1281047. The reversal of 1281044 is 4401821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5042 + ... + 5289.

It is an arithmetic number, because the mean of its divisors is an integer number (192864).

2^1281044 is an apocalyptic number.

It is an amenable number.

1281044 is a deficient number, since it is larger than the sum of its proper divisors (1033324).

1281044 is a wasteful number, since it uses less digits than its factorization.

1281044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1281044 is about 1131.8321430318. The cubic root of 1281044 is about 108.6062159335.

Adding to 1281044 its reverse (4401821), we get a palindrome (5682865).

The spelling of 1281044 in words is "one million, two hundred eighty-one thousand, forty-four".