289241856 has 54 divisors (see below), whose sum is σ = 833962220. Its totient is φ = 96413184.

The previous prime is 289241837. The next prime is 289241861. The reversal of 289241856 is 658142982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60466 + ... + 65073.

Almost surely, 2^289241856 is an apocalyptic number.

It is an amenable number.

289241856 is an abundant number, since it is smaller than the sum of its proper divisors (544720364).

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

289241856 is a wasteful number, since it uses less digits than its factorization.

289241856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125561 (or 125544 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 289241856 is about 17007.1119241334. Note that the first 3 decimals coincide. The cubic root of 289241856 is about 661.3332827494. Note that the first 3 decimals are identical.

The spelling of 289241856 in words is "two hundred eighty-nine million, two hundred forty-one thousand, eight hundred fifty-six".