1283444 has 6 divisors (see below), whose sum is σ = 2246034. Its totient is φ = 641720.

The previous prime is 1283441. The next prime is 1283473. The reversal of 1283444 is 4443821.

It can be written as a sum of positive squares in only one way, i.e., 659344 + 624100 = 812^2 + 790^2 .

It is a super-2 number, since 2×1283444² = 3294457002272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283441) by changing a digit.

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 as a sum of consecutive naturals, namely, 160427 + ... + 160434.

It is an arithmetic number, because the mean of its divisors is an integer number (374339).

2^1283444 is an apocalyptic number.

It is an amenable number.

1283444 is a deficient number, since it is larger than the sum of its proper divisors (962590).

1283444 is a wasteful number, since it uses less digits than its factorization.

1283444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320865 (or 320863 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1283444 is about 1132.8918748054. The cubic root of 1283444 is about 108.6739971887.

The spelling of 1283444 in words is "one million, two hundred eighty-three thousand, four hundred forty-four".