289020108 has 48 divisors (see below), whose sum is σ = 741726720. Its totient is φ = 87034944.

The previous prime is 289020107. The next prime is 289020187. The reversal of 289020108 is 801020982.

It is not an unprimeable number, because it can be changed into a prime (289020107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12378 + ... + 27041.

It is an arithmetic number, because the mean of its divisors is an integer number (15452640).

Almost surely, 2^289020108 is an apocalyptic number.

It is an amenable number.

289020108 is an abundant number, since it is smaller than the sum of its proper divisors (452706612).

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

289020108 is a wasteful number, since it uses less digits than its factorization.

289020108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39486 (or 39484 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 289020108 is about 17000.5914014778. The cubic root of 289020108 is about 661.1642352642.

The spelling of 289020108 in words is "two hundred eighty-nine million, twenty thousand, one hundred eight".