115183440 has 60 divisors (see below), whose sum is σ = 386826804. Its totient is φ = 30715392.

The previous prime is 115183429. The next prime is 115183441. The reversal of 115183440 is 44381511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15023376 + 100160064 = 3876^2 + 10008^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115183441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79269 + ... + 80708.

Almost surely, 2^115183440 is an apocalyptic number.

115183440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115183440 is an abundant number, since it is smaller than the sum of its proper divisors (271643364).

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

115183440 is a wasteful number, since it uses less digits than its factorization.

115183440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159996 (or 159987 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 115183440 is about 10732.3548208210. The cubic root of 115183440 is about 486.5528434210.

The spelling of 115183440 in words is "one hundred fifteen million, one hundred eighty-three thousand, four hundred forty".