115647040 has 56 divisors (see below), whose sum is σ = 277108920. Its totient is φ = 45969408.

The previous prime is 115647031. The next prime is 115647047. The reversal of 115647040 is 40746511.

It can be written as a sum of positive squares in 4 ways, for example, as 57032704 + 58614336 = 7552^2 + 7656^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115647047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54316 + ... + 56404.

Almost surely, 2^115647040 is an apocalyptic number.

115647040 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 115647040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138554460).

115647040 is an abundant number, since it is smaller than the sum of its proper divisors (161461880).

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

115647040 is a wasteful number, since it uses less digits than its factorization.

115647040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 115647040 is about 10753.9313741534. The cubic root of 115647040 is about 487.2047425352.

The spelling of 115647040 in words is "one hundred fifteen million, six hundred forty-seven thousand, forty".