115442340 has 144 divisors (see below), whose sum is σ = 360975552. Its totient is φ = 27396864.

The previous prime is 115442333. The next prime is 115442351. The reversal of 115442340 is 43244511.

It is a self number, because there is not a number n which added to its sum of digits gives 115442340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1722987 + ... + 1723053.

Almost surely, 2^115442340 is an apocalyptic number.

115442340 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 115442340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180487776).

115442340 is an abundant number, since it is smaller than the sum of its proper divisors (245533212).

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

115442340 is a wasteful number, since it uses less digits than its factorization.

115442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 115442340 is about 10744.4097092395. The cubic root of 115442340 is about 486.9171153111.

Adding to 115442340 its reverse (43244511), we get a palindrome (158686851).

The spelling of 115442340 in words is "one hundred fifteen million, four hundred forty-two thousand, three hundred forty".