289229138 has 16 divisors (see below), whose sum is σ = 474637536. Its totient is φ = 131091840.

The previous prime is 289229123. The next prime is 289229147. The reversal of 289229138 is 831922982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856 + ... + 26387.

It is an arithmetic number, because the mean of its divisors is an integer number (29664846).

Almost surely, 2^289229138 is an apocalyptic number.

289229138 is a deficient number, since it is larger than the sum of its proper divisors (185408398).

289229138 is a wasteful number, since it uses less digits than its factorization.

289229138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37609.

The product of its digits is 124416, while the sum is 44.

The square root of 289229138 is about 17006.7380176211. The cubic root of 289229138 is about 661.3235896388.

The spelling of 289229138 in words is "two hundred eighty-nine million, two hundred twenty-nine thousand, one hundred thirty-eight".