289229800 has 96 divisors (see below), whose sum is σ = 692812800. Its totient is φ = 112250880.

The previous prime is 289229771. The next prime is 289229803. The reversal of 289229800 is 8922982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (289229803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1498504 + ... + 1498696.

It is an arithmetic number, because the mean of its divisors is an integer number (7216800).

Almost surely, 2^289229800 is an apocalyptic number.

289229800 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 289229800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346406400).

289229800 is an abundant number, since it is smaller than the sum of its proper divisors (403583000).

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

289229800 is a wasteful number, since it uses less digits than its factorization.

289229800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 289229800 is about 17006.7574804840. The cubic root of 289229800 is about 661.3240941936.

The spelling of 289229800 in words is "two hundred eighty-nine million, two hundred twenty-nine thousand, eight hundred".