289085384 has 32 divisors (see below), whose sum is σ = 620166720. Its totient is φ = 123754176.

The previous prime is 289085371. The next prime is 289085387. The reversal of 289085384 is 483580982.

It is not an unprimeable number, because it can be changed into a prime (289085387) 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, 58847 + ... + 63569.

It is an arithmetic number, because the mean of its divisors is an integer number (19380210).

Almost surely, 2^289085384 is an apocalyptic number.

It is an amenable number.

289085384 is an abundant number, since it is smaller than the sum of its proper divisors (331081336).

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

289085384 is a wasteful number, since it uses less digits than its factorization.

289085384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 289085384 is about 17002.5111086569. The cubic root of 289085384 is about 661.2140067815.

The spelling of 289085384 in words is "two hundred eighty-nine million, eighty-five thousand, three hundred eighty-four".