115800240 has 40 divisors (see below), whose sum is σ = 358981488. Its totient is φ = 30880000.

The previous prime is 115800233. The next prime is 115800241. The reversal of 115800240 is 42008511.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (115800241) 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, 241011 + ... + 241490.

Almost surely, 2^115800240 is an apocalyptic number.

115800240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115800240 is an abundant number, since it is smaller than the sum of its proper divisors (243181248).

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

115800240 is a wasteful number, since it uses less digits than its factorization.

115800240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482517 (or 482511 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 115800240 is about 10761.0519931836. The cubic root of 115800240 is about 487.4197843033.

Adding to 115800240 its reverse (42008511), we get a palindrome (157808751).

The spelling of 115800240 in words is "one hundred fifteen million, eight hundred thousand, two hundred forty".