289048816 has 40 divisors (see below), whose sum is σ = 645935840. Its totient is φ = 122736384.

The previous prime is 289048813. The next prime is 289048817. The reversal of 289048816 is 618840982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289048813) 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, 370 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (16148396).

Almost surely, 2^289048816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289048816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322967920).

289048816 is an abundant number, since it is smaller than the sum of its proper divisors (356887024).

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

289048816 is a wasteful number, since it uses less digits than its factorization.

289048816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23801 (or 23795 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 289048816 is about 17001.4357040810. The cubic root of 289048816 is about 661.1861254072.

The spelling of 289048816 in words is "two hundred eighty-nine million, forty-eight thousand, eight hundred sixteen".