289851056 has 80 divisors (see below), whose sum is σ = 640807200. Its totient is φ = 125798400.

The previous prime is 289851053. The next prime is 289851101. The reversal of 289851056 is 650158982.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 289850998 and 289851016.

It is not an unprimeable number, because it can be changed into a prime (289851053) 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, 556076 + ... + 556596.

It is an arithmetic number, because the mean of its divisors is an integer number (8010090).

Almost surely, 2^289851056 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 289851056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320403600).

289851056 is an abundant number, since it is smaller than the sum of its proper divisors (350956144).

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

289851056 is a wasteful number, since it uses less digits than its factorization.

289851056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The square root of 289851056 is about 17025.0126578514. The cubic root of 289851056 is about 661.7972563030.

The spelling of 289851056 in words is "two hundred eighty-nine million, eight hundred fifty-one thousand, fifty-six".