1281444 has 12 divisors (see below), whose sum is σ = 2990064. Its totient is φ = 427144.

The previous prime is 1281439. The next prime is 1281451. The reversal of 1281444 is 4441821.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53382 + ... + 53405.

It is an arithmetic number, because the mean of its divisors is an integer number (249172).

2^1281444 is an apocalyptic number.

It is an amenable number.

1281444 is an abundant number, since it is smaller than the sum of its proper divisors (1708620).

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

1281444 is a wasteful number, since it uses less digits than its factorization.

1281444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106794 (or 106792 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 1281444 is about 1132.0088338878. The cubic root of 1281444 is about 108.6175186849.

The spelling of 1281444 in words is "one million, two hundred eighty-one thousand, four hundred forty-four".