115699240 has 64 divisors (see below), whose sum is σ = 268868160. Its totient is φ = 44782080.

The previous prime is 115699219. The next prime is 115699247. The reversal of 115699240 is 42996511.

It is a self number, because there is not a number n which added to its sum of digits gives 115699240.

It is not an unprimeable number, because it can be changed into a prime (115699247) 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, 235395 + ... + 235885.

It is an arithmetic number, because the mean of its divisors is an integer number (4201065).

Almost surely, 2^115699240 is an apocalyptic number.

115699240 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 115699240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134434080).

115699240 is an abundant number, since it is smaller than the sum of its proper divisors (153168920).

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

115699240 is a wasteful number, since it uses less digits than its factorization.

115699240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 115699240 is about 10756.3581197355. The cubic root of 115699240 is about 487.2780352659.

The spelling of 115699240 in words is "one hundred fifteen million, six hundred ninety-nine thousand, two hundred forty".