289096940 has 96 divisors (see below), whose sum is σ = 692919360. Its totient is φ = 100352000.

The previous prime is 289096939. The next prime is 289096949. The reversal of 289096940 is 49690982.

It is not an unprimeable number, because it can be changed into a prime (289096949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720740 + ... + 721140.

It is an arithmetic number, because the mean of its divisors is an integer number (7217910).

Almost surely, 2^289096940 is an apocalyptic number.

289096940 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 289096940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346459680).

289096940 is an abundant number, since it is smaller than the sum of its proper divisors (403822420).

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

289096940 is a wasteful number, since it uses less digits than its factorization.

289096940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 289096940 is about 17002.8509374163. The cubic root of 289096940 is about 661.2228171973. Note that the first 3 decimals are identical.

The spelling of 289096940 in words is "two hundred eighty-nine million, ninety-six thousand, nine hundred forty".