289314860 has 48 divisors (see below), whose sum is σ = 624667680. Its totient is φ = 112488960.

The previous prime is 289314859. The next prime is 289314871. The reversal of 289314860 is 68413982.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 15 ways as a sum of consecutive naturals, for example, 318527 + ... + 319433.

It is an arithmetic number, because the mean of its divisors is an integer number (13013910).

Almost surely, 2^289314860 is an apocalyptic number.

289314860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289314860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312333840).

289314860 is an abundant number, since it is smaller than the sum of its proper divisors (335352820).

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

289314860 is a wasteful number, since it uses less digits than its factorization.

289314860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 289314860 is about 17009.2580672997. The cubic root of 289314860 is about 661.3889177513.

The spelling of 289314860 in words is "two hundred eighty-nine million, three hundred fourteen thousand, eight hundred sixty".