289944488 has 16 divisors (see below), whose sum is σ = 561183360. Its totient is φ = 140295600.

The previous prime is 289944419. The next prime is 289944491. The reversal of 289944488 is 884449982.

It is a super-2 number, since 2×289944488² = 168135612243164288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584318 + ... + 584813.

It is an arithmetic number, because the mean of its divisors is an integer number (35073960).

Almost surely, 2^289944488 is an apocalyptic number.

It is an amenable number.

289944488 is a deficient number, since it is larger than the sum of its proper divisors (271238872).

289944488 is a wasteful number, since it uses less digits than its factorization.

289944488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169168 (or 1169164 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The square root of 289944488 is about 17027.7563994791. The cubic root of 289944488 is about 661.8683576466.

The spelling of 289944488 in words is "two hundred eighty-nine million, nine hundred forty-four thousand, four hundred eighty-eight".