288969489 has 12 divisors (see below), whose sum is σ = 426281856. Its totient is φ = 188547192.

The previous prime is 288969481. The next prime is 288969533. The reversal of 288969489 is 984969882.

It is not a de Polignac number, because 288969489 - 2³ = 288969481 is a prime.

It is a super-2 number, since 2×288969489² = 167006731145842242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (288969481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341149 + ... + 341994.

It is an arithmetic number, because the mean of its divisors is an integer number (35523488).

Almost surely, 2^288969489 is an apocalyptic number.

It is an amenable number.

288969489 is a deficient number, since it is larger than the sum of its proper divisors (137312367).

288969489 is a wasteful number, since it uses less digits than its factorization.

288969489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683196 (or 683193 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The square root of 288969489 is about 16999.1025939607. The cubic root of 288969489 is about 661.1256342286.

The spelling of 288969489 in words is "two hundred eighty-eight million, nine hundred sixty-nine thousand, four hundred eighty-nine".