289144846 has 12 divisors (see below), whose sum is σ = 443148408. Its totient is φ = 141494252.

The previous prime is 289144813. The next prime is 289144847. The reversal of 289144846 is 648441982.

It is a junction number, because it is equal to n+sod(n) for n = 289144796 and 289144805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289144847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28306 + ... + 37141.

It is an arithmetic number, because the mean of its divisors is an integer number (36929034).

Almost surely, 2^289144846 is an apocalyptic number.

289144846 is a deficient number, since it is larger than the sum of its proper divisors (154003562).

289144846 is an equidigital number, since it uses as much as digits as its factorization.

289144846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65543 (or 65496 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 289144846 is about 17004.2596428072. The cubic root of 289144846 is about 661.2593387308.

The spelling of 289144846 in words is "two hundred eighty-nine million, one hundred forty-four thousand, eight hundred forty-six".