115011380 has 48 divisors (see below), whose sum is σ = 265446720. Its totient is φ = 41510400.

The previous prime is 115011353. The next prime is 115011433. The reversal of 115011380 is 83110511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28700 + ... + 32460.

It is an arithmetic number, because the mean of its divisors is an integer number (5530140).

Almost surely, 2^115011380 is an apocalyptic number.

115011380 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 115011380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132723360).

115011380 is an abundant number, since it is smaller than the sum of its proper divisors (150435340).

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

115011380 is a wasteful number, since it uses less digits than its factorization.

115011380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3918 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 115011380 is about 10724.3358768737. The cubic root of 115011380 is about 486.3104532482.

Adding to 115011380 its reverse (83110511), we get a palindrome (198121891).

The spelling of 115011380 in words is "one hundred fifteen million, eleven thousand, three hundred eighty".