115339840 has 224 divisors, whose sum is σ = 355811328. Its totient is φ = 34560000.

The previous prime is 115339831. The next prime is 115339843. The reversal of 115339840 is 48933511.

It is a tau number, because it is divible by the number of its divisors (224).

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 115339796 and 115339805.

It is not an unprimeable number, because it can be changed into a prime (115339843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763765 + ... + 763915.

Almost surely, 2^115339840 is an apocalyptic number.

115339840 is a gapful number since it is divisible by the number (10) 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 115339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177905664).

115339840 is an abundant number, since it is smaller than the sum of its proper divisors (240471488).

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

115339840 is a wasteful number, since it uses less digits than its factorization.

115339840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 115339840 is about 10739.6387276295. The cubic root of 115339840 is about 486.7729631661.

The spelling of 115339840 in words is "one hundred fifteen million, three hundred thirty-nine thousand, eight hundred forty".