115434618 has 64 divisors (see below), whose sum is σ = 257359872. Its totient is φ = 34292160.

The previous prime is 115434589. The next prime is 115434619. The reversal of 115434618 is 816434511.

It is not an unprimeable number, because it can be changed into a prime (115434619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425823 + ... + 426093.

It is an arithmetic number, because the mean of its divisors is an integer number (4021248).

Almost surely, 2^115434618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115434618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128679936).

115434618 is an abundant number, since it is smaller than the sum of its proper divisors (141925254).

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

115434618 is a wasteful number, since it uses less digits than its factorization.

115434618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459.

The product of its digits is 11520, while the sum is 33.

The square root of 115434618 is about 10744.0503535678. The cubic root of 115434618 is about 486.9062583535.

It can be divided in two parts, 11543 and 4618, that added together give a palindrome (16161).

The spelling of 115434618 in words is "one hundred fifteen million, four hundred thirty-four thousand, six hundred eighteen".