115445340 has 72 divisors (see below), whose sum is σ = 358748208. Its totient is φ = 30032640.

The previous prime is 115445329. The next prime is 115445353. The reversal of 115445340 is 43544511.

It is a happy number.

It is a congruent number.

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, 442 + ... + 15201.

It is an arithmetic number, because the mean of its divisors is an integer number (4982614).

Almost surely, 2^115445340 is an apocalyptic number.

115445340 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 115445340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179374104).

115445340 is an abundant number, since it is smaller than the sum of its proper divisors (243302868).

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

115445340 is a wasteful number, since it uses less digits than its factorization.

115445340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15699 (or 15694 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 115445340 is about 10744.5493158159. The cubic root of 115445340 is about 486.9213331128.

Adding to 115445340 its reverse (43544511), we get a palindrome (158989851).

The spelling of 115445340 in words is "one hundred fifteen million, four hundred forty-five thousand, three hundred forty".