288989136 has 30 divisors (see below), whose sum is σ = 808768610. Its totient is φ = 96329664.

The previous prime is 288989117. The next prime is 288989143. The reversal of 288989136 is 631989882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 286286400 + 2702736 = 16920^2 + 1644^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1003291 + ... + 1003578.

Almost surely, 2^288989136 is an apocalyptic number.

It is an amenable number.

288989136 is an abundant number, since it is smaller than the sum of its proper divisors (519779474).

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

288989136 is a wasteful number, since it uses less digits than its factorization.

288989136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006883 (or 2006874 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 288989136 is about 16999.6804675853. The cubic root of 288989136 is about 661.1406171726.

The spelling of 288989136 in words is "two hundred eighty-eight million, nine hundred eighty-nine thousand, one hundred thirty-six".