289480760 has 128 divisors (see below), whose sum is σ = 731566080. Its totient is φ = 102524928.

The previous prime is 289480747. The next prime is 289480781. The reversal of 289480760 is 67084982.

It is a super-2 number, since 2×289480760² = 167598220820355200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298009 + ... + 1298231.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^289480760 is an apocalyptic number.

289480760 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 289480760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365783040).

289480760 is an abundant number, since it is smaller than the sum of its proper divisors (442085320).

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

289480760 is a wasteful number, since it uses less digits than its factorization.

289480760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 289480760 is about 17014.1341243097. The cubic root of 289480760 is about 661.5153122906.

The spelling of 289480760 in words is "two hundred eighty-nine million, four hundred eighty thousand, seven hundred sixty".