115820288 has 36 divisors (see below), whose sum is σ = 231912240. Its totient is φ = 57729024.

The previous prime is 115820281. The next prime is 115820321. The reversal of 115820288 is 882028511.

It is a super-2 number, since 2×115820288² = 26828678224805888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115820281) 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, 124208 + ... + 125136.

Almost surely, 2^115820288 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 115820288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115956120).

115820288 is an abundant number, since it is smaller than the sum of its proper divisors (116091952).

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

115820288 is an frugal number, since it uses more digits than its factorization.

115820288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 115820288 is about 10761.9834603107. The cubic root of 115820288 is about 487.4479109807.

Adding to 115820288 its reverse (882028511), we get a palindrome (997848799).

The spelling of 115820288 in words is "one hundred fifteen million, eight hundred twenty thousand, two hundred eighty-eight".