115590840 has 64 divisors (see below), whose sum is σ = 351682560. Its totient is φ = 30387840.

The previous prime is 115590817. The next prime is 115590841. The reversal of 115590840 is 48095511.

It is a super-3 number, since 3×115590840³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115590841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737 + ... + 15303.

It is an arithmetic number, because the mean of its divisors is an integer number (5495040).

Almost surely, 2^115590840 is an apocalyptic number.

115590840 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 115590840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175841280).

115590840 is an abundant number, since it is smaller than the sum of its proper divisors (236091720).

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

115590840 is a wasteful number, since it uses less digits than its factorization.

115590840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13652 (or 13648 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 115590840 is about 10751.3180587312. The cubic root of 115590840 is about 487.1258088445.

The spelling of 115590840 in words is "one hundred fifteen million, five hundred ninety thousand, eight hundred forty".