289032690 has 16 divisors (see below), whose sum is σ = 693678528. Its totient is φ = 77075376.

The previous prime is 289032673. The next prime is 289032703. The reversal of 289032690 is 96230982.

289032690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×289032690² = 167079791777272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817182 + ... + 4817241.

It is an arithmetic number, because the mean of its divisors is an integer number (43354908).

Almost surely, 2^289032690 is an apocalyptic number.

289032690 is an abundant number, since it is smaller than the sum of its proper divisors (404645838).

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

289032690 is a wasteful number, since it uses less digits than its factorization.

289032690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9634433.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 289032690 is about 17000.9614434008. The cubic root of 289032690 is about 661.1738293461.

The spelling of 289032690 in words is "two hundred eighty-nine million, thirty-two thousand, six hundred ninety".