115120440 has 80 divisors (see below), whose sum is σ = 386943480. Its totient is φ = 30697920.

The previous prime is 115120403. The next prime is 115120441. The reversal of 115120440 is 44021511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115120441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14526 + ... + 21005.

Almost surely, 2^115120440 is an apocalyptic number.

115120440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115120440 is an abundant number, since it is smaller than the sum of its proper divisors (271823040).

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

115120440 is a wasteful number, since it uses less digits than its factorization.

115120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35554 (or 35541 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 115120440 is about 10729.4193691924. The cubic root of 115120440 is about 486.4641199627.

Adding to 115120440 its reverse (44021511), we get a palindrome (159141951).

The spelling of 115120440 in words is "one hundred fifteen million, one hundred twenty thousand, four hundred forty".