289032282 has 144 divisors (see below), whose sum is σ = 821193984. Its totient is φ = 72651600.

The previous prime is 289032253. The next prime is 289032347. The reversal of 289032282 is 282230982.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9323607 + ... + 9323637.

It is an arithmetic number, because the mean of its divisors is an integer number (5702736).

Almost surely, 2^289032282 is an apocalyptic number.

289032282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 289032282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410596992).

289032282 is an abundant number, since it is smaller than the sum of its proper divisors (532161702).

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

289032282 is a wasteful number, since it uses less digits than its factorization.

289032282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 289032282 is about 17000.9494440752. The cubic root of 289032282 is about 661.1735182405.

The spelling of 289032282 in words is "two hundred eighty-nine million, thirty-two thousand, two hundred eighty-two".