1289842114 has 16 divisors (see below), whose sum is σ = 2131551936. Its totient is φ = 580486000.

The previous prime is 1289842109. The next prime is 1289842121. The reversal of 1289842114 is 4112489821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288022 + ... + 292465.

It is an arithmetic number, because the mean of its divisors is an integer number (133221996).

Almost surely, 2^1289842114 is an apocalyptic number.

1289842114 is a deficient number, since it is larger than the sum of its proper divisors (841709822).

1289842114 is a wasteful number, since it uses less digits than its factorization.

1289842114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580601.

The product of its digits is 36864, while the sum is 40.

The square root of 1289842114 is about 35914.3719700067. The cubic root of 1289842114 is about 1088.5428200947.

The spelling of 1289842114 in words is "one billion, two hundred eighty-nine million, eight hundred forty-two thousand, one hundred fourteen".