289538136 has 48 divisors (see below), whose sum is σ = 785531760. Its totient is φ = 96344640.

The previous prime is 289538111. The next prime is 289538143. The reversal of 289538136 is 631835982.

It is a happy number.

289538136 is a `hidden beast` number, since 2 + 89 + 538 + 1 + 36 = 666.

289538136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 289538091 and 289538100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42246 + ... + 48618.

It is an arithmetic number, because the mean of its divisors is an integer number (16365245).

Almost surely, 2^289538136 is an apocalyptic number.

It is an amenable number.

289538136 is an abundant number, since it is smaller than the sum of its proper divisors (495993624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289538136 is a wasteful number, since it uses less digits than its factorization.

289538136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016 (or 7009 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 289538136 is about 17015.8201683022. The cubic root of 289538136 is about 661.5590142108.

The spelling of 289538136 in words is "two hundred eighty-nine million, five hundred thirty-eight thousand, one hundred thirty-six".