289456 has 20 divisors (see below), whose sum is σ = 570400. Its totient is φ = 142272.

The previous prime is 289453. The next prime is 289463. The reversal of 289456 is 654982.

It is a happy number.

It is a d-powerful number, because it can be written as 2¹⁸ + 8⁴ + 4⁵ + 9⁴ + 5⁶ + 6 .

It is not an unprimeable number, because it can be changed into a prime (289453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (28520).

2²⁸⁹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

289456 is a deficient number, since it is larger than the sum of its proper divisors (280944).

289456 is a wasteful number, since it uses less digits than its factorization.

289456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 289456 is about 538.0111523008. The cubic root of 289456 is about 66.1496451410.

The spelling of 289456 in words is "two hundred eighty-nine thousand, four hundred fifty-six".