288731136 has 52 divisors (see below), whose sum is σ = 769888472. Its totient is φ = 96239616.

The previous prime is 288731129. The next prime is 288731137. The reversal of 288731136 is 631137882.

It is a junction number, because it is equal to n+sod(n) for n = 288731094 and 288731103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288731137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540 + ... + 24036.

Almost surely, 2^288731136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288731136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384944236).

288731136 is an abundant number, since it is smaller than the sum of its proper divisors (481157336).

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

288731136 is an equidigital number, since it uses as much as digits as its factorization.

288731136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23524 (or 23502 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 288731136 is about 16992.0903952398. The cubic root of 288731136 is about 660.9438103908.

The spelling of 288731136 in words is "two hundred eighty-eight million, seven hundred thirty-one thousand, one hundred thirty-six".