115020378 has 64 divisors (see below), whose sum is σ = 290995200. Its totient is φ = 33335280.

The previous prime is 115020377. The next prime is 115020403. The reversal of 115020378 is 873020511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115020371) 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, 9453 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (4546800).

Almost surely, 2^115020378 is an apocalyptic number.

115020378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115020378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145497600).

115020378 is an abundant number, since it is smaller than the sum of its proper divisors (175974822).

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

115020378 is a wasteful number, since it uses less digits than its factorization.

115020378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464 (or 8458 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 115020378 is about 10724.7553818257. The cubic root of 115020378 is about 486.3231352030.

Adding to 115020378 its reverse (873020511), we get a palindrome (988040889).

It can be divided in two parts, 1150 and 20378, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 115020378 in words is "one hundred fifteen million, twenty thousand, three hundred seventy-eight".