289138004 has 24 divisors (see below), whose sum is σ = 524294400. Its totient is φ = 139356000.

The previous prime is 289137997. The next prime is 289138007. The reversal of 289138004 is 400831982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289138007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85457 + ... + 88775.

It is an arithmetic number, because the mean of its divisors is an integer number (21845600).

Almost surely, 2^289138004 is an apocalyptic number.

It is an amenable number.

289138004 is a deficient number, since it is larger than the sum of its proper divisors (235156396).

289138004 is a wasteful number, since it uses less digits than its factorization.

289138004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 289138004 is about 17004.0584567332. The cubic root of 289138004 is about 661.2541229227.

Adding to 289138004 its reverse (400831982), we get a palindrome (689969986).

The spelling of 289138004 in words is "two hundred eighty-nine million, one hundred thirty-eight thousand, four".