1289042 has 16 divisors (see below), whose sum is σ = 2115072. Its totient is φ = 586560.

The previous prime is 1289039. The next prime is 1289053. The reversal of 1289042 is 2409821.

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, 443 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (132192).

2^1289042 is an apocalyptic number.

1289042 is a deficient number, since it is larger than the sum of its proper divisors (826030).

1289042 is a wasteful number, since it uses less digits than its factorization.

1289042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1289042 is about 1135.3598548478. The cubic root of 1289042 is about 108.8317692152.

The spelling of 1289042 in words is "one million, two hundred eighty-nine thousand, forty-two".