289024668 has 18 divisors (see below), whose sum is σ = 730590224. Its totient is φ = 96341544.

The previous prime is 289024663. The next prime is 289024679. The reversal of 289024668 is 866420982.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289024663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4014196 + ... + 4014267.

Almost surely, 2^289024668 is an apocalyptic number.

It is an amenable number.

289024668 is an abundant number, since it is smaller than the sum of its proper divisors (441565556).

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

289024668 is a wasteful number, since it uses less digits than its factorization.

289024668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028473 (or 8028468 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 289024668 is about 17000.7255139303. The cubic root of 289024668 is about 661.1677124076.

The spelling of 289024668 in words is "two hundred eighty-nine million, twenty-four thousand, six hundred sixty-eight".