115307380 has 24 divisors (see below), whose sum is σ = 242784360. Its totient is φ = 46001280.

The previous prime is 115307377. The next prime is 115307389. The reversal of 115307380 is 83703511.

It can be written as a sum of positive squares in 4 ways, for example, as 2650384 + 112656996 = 1628^2 + 10614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115307389) 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, 370 + ... + 15190.

It is an arithmetic number, because the mean of its divisors is an integer number (10116015).

Almost surely, 2^115307380 is an apocalyptic number.

115307380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115307380 is an abundant number, since it is smaller than the sum of its proper divisors (127476980).

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

115307380 is a wasteful number, since it uses less digits than its factorization.

115307380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15219 (or 15217 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 115307380 is about 10738.1273972700. The cubic root of 115307380 is about 486.7272948383.

The spelling of 115307380 in words is "one hundred fifteen million, three hundred seven thousand, three hundred eighty".