115840256 has 72 divisors (see below), whose sum is σ = 266864640. Its totient is φ = 49158144.

The previous prime is 115840243. The next prime is 115840271. The reversal of 115840256 is 652048511.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227330 + ... + 227838.

Almost surely, 2^115840256 is an apocalyptic number.

115840256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115840256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133432320).

115840256 is an abundant number, since it is smaller than the sum of its proper divisors (151024384).

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

115840256 is an equidigital number, since it uses as much as digits as its factorization.

115840256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 115840256 is about 10762.9111303587. The cubic root of 115840256 is about 487.4759221945.

Adding to 115840256 its reverse (652048511), we get a palindrome (767888767).

It can be divided in two parts, 1158 and 40256, that added together give a palindrome (41414).

The spelling of 115840256 in words is "one hundred fifteen million, eight hundred forty thousand, two hundred fifty-six".