289905068 has 6 divisors (see below), whose sum is σ = 507333876. Its totient is φ = 144952532.

The previous prime is 289905067. The next prime is 289905073. The reversal of 289905068 is 860509982.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (289905061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36238130 + ... + 36238137.

It is an arithmetic number, because the mean of its divisors is an integer number (84555646).

Almost surely, 2^289905068 is an apocalyptic number.

It is an amenable number.

289905068 is a deficient number, since it is larger than the sum of its proper divisors (217428808).

289905068 is a wasteful number, since it uses less digits than its factorization.

289905068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72476271 (or 72476269 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 289905068 is about 17026.5988382883. The cubic root of 289905068 is about 661.8383610620.

The spelling of 289905068 in words is "two hundred eighty-nine million, nine hundred five thousand, sixty-eight".