115049380 has 48 divisors (see below), whose sum is σ = 251158320. Its totient is φ = 44215808.

The previous prime is 115049377. The next prime is 115049383. The reversal of 115049380 is 83940511.

It is an interprime number because it is at equal distance from previous prime (115049377) and next prime (115049383).

It can be written as a sum of positive squares in 8 ways, for example, as 33616804 + 81432576 = 5798^2 + 9024^2 .

It is not an unprimeable number, because it can be changed into a prime (115049383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169602 + ... + 170278.

It is an arithmetic number, because the mean of its divisors is an integer number (5232465).

Almost surely, 2^115049380 is an apocalyptic number.

115049380 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 115049380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125579160).

115049380 is an abundant number, since it is smaller than the sum of its proper divisors (136108940).

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

115049380 is a wasteful number, since it uses less digits than its factorization.

115049380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 115049380 is about 10726.1074020355. The cubic root of 115049380 is about 486.3640066802.

Adding to 115049380 its reverse (83940511), we get a palindrome (198989891).

The spelling of 115049380 in words is "one hundred fifteen million, forty-nine thousand, three hundred eighty".