289741872 has 80 divisors (see below), whose sum is σ = 883054592. Its totient is φ = 80110080.

The previous prime is 289741867. The next prime is 289741873. The reversal of 289741872 is 278147982.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (289741873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3493 + ... + 24324.

Almost surely, 2^289741872 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 289741872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441527296).

289741872 is an abundant number, since it is smaller than the sum of its proper divisors (593312720).

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

289741872 is a wasteful number, since it uses less digits than its factorization.

289741872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27866 (or 27860 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 289741872 is about 17021.8057796463. The cubic root of 289741872 is about 661.7141483930.

The spelling of 289741872 in words is "two hundred eighty-nine million, seven hundred forty-one thousand, eight hundred seventy-two".