289849504 has 144 divisors (see below), whose sum is σ = 703261440. Its totient is φ = 117089280.

The previous prime is 289849489. The next prime is 289849513. The reversal of 289849504 is 405948982.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3256692 + ... + 3256780.

It is an arithmetic number, because the mean of its divisors is an integer number (4883760).

Almost surely, 2^289849504 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 289849504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351630720).

289849504 is an abundant number, since it is smaller than the sum of its proper divisors (413411936).

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

289849504 is a wasteful number, since it uses less digits than its factorization.

289849504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 289849504 is about 17024.9670777949. The cubic root of 289849504 is about 661.7960751088.

The spelling of 289849504 in words is "two hundred eighty-nine million, eight hundred forty-nine thousand, five hundred four".