115132440 has 64 divisors (see below), whose sum is σ = 346291200. Its totient is φ = 30622592.

The previous prime is 115132439. The next prime is 115132463. The reversal of 115132440 is 44231511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56479 + ... + 58481.

It is an arithmetic number, because the mean of its divisors is an integer number (5410800).

Almost surely, 2^115132440 is an apocalyptic number.

115132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115132440 is an abundant number, since it is smaller than the sum of its proper divisors (231158760).

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

115132440 is a wasteful number, since it uses less digits than its factorization.

115132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 115132440 is about 10729.9785647503. The cubic root of 115132440 is about 486.4810221642.

Adding to 115132440 its reverse (44231511), we get a palindrome (159363951).

The spelling of 115132440 in words is "one hundred fifteen million, one hundred thirty-two thousand, four hundred forty".