115805412 has 72 divisors (see below), whose sum is σ = 302754816. Its totient is φ = 37295424.

The previous prime is 115805387. The next prime is 115805447. The reversal of 115805412 is 214508511.

115805412 is a `hidden beast` number, since 115 + 8 + 0 + 541 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302173 + ... + 302555.

It is an arithmetic number, because the mean of its divisors is an integer number (4204928).

Almost surely, 2^115805412 is an apocalyptic number.

115805412 is a gapful number since it is divisible by the number (12) 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 115805412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151377408).

115805412 is an abundant number, since it is smaller than the sum of its proper divisors (186949404).

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

115805412 is a wasteful number, since it uses less digits than its factorization.

115805412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 115805412 is about 10761.2923015779. The cubic root of 115805412 is about 487.4270407580.

The spelling of 115805412 in words is "one hundred fifteen million, eight hundred five thousand, four hundred twelve".