1289044 has 6 divisors (see below), whose sum is σ = 2255834. Its totient is φ = 644520.

The previous prime is 1289039. The next prime is 1289053. The reversal of 1289044 is 4409821.

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 211600 = 1038^2 + 460^2 .

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 as a sum of consecutive naturals, namely, 161127 + ... + 161134.

2^1289044 is an apocalyptic number.

It is an amenable number.

1289044 is a deficient number, since it is larger than the sum of its proper divisors (966790).

1289044 is a wasteful number, since it uses less digits than its factorization.

1289044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322265 (or 322263 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1289044 is about 1135.3607356255. The cubic root of 1289044 is about 108.8318255008.

The spelling of 1289044 in words is "one million, two hundred eighty-nine thousand, forty-four".