115040340 has 72 divisors (see below), whose sum is σ = 354201120. Its totient is φ = 30216384.

The previous prime is 115040339. The next prime is 115040357. The reversal of 115040340 is 43040511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7291 + ... + 16829.

It is an arithmetic number, because the mean of its divisors is an integer number (4919460).

Almost surely, 2^115040340 is an apocalyptic number.

115040340 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 115040340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177100560).

115040340 is an abundant number, since it is smaller than the sum of its proper divisors (239160780).

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

115040340 is a wasteful number, since it uses less digits than its factorization.

115040340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9621 (or 9616 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 115040340 is about 10725.6859920473. The cubic root of 115040340 is about 486.3512676697.

Adding to 115040340 its reverse (43040511), we get a palindrome (158080851).

The spelling of 115040340 in words is "one hundred fifteen million, forty thousand, three hundred forty".