115000440 has 128 divisors (see below), whose sum is σ = 361152000. Its totient is φ = 29265408.

The previous prime is 115000429. The next prime is 115000441. The reversal of 115000440 is 44000511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115000441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261741 + ... + 262179.

It is an arithmetic number, because the mean of its divisors is an integer number (2821500).

Almost surely, 2^115000440 is an apocalyptic number.

115000440 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 115000440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180576000).

115000440 is an abundant number, since it is smaller than the sum of its proper divisors (246151560).

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

115000440 is a wasteful number, since it uses less digits than its factorization.

115000440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 115000440 is about 10723.8258098498. The cubic root of 115000440 is about 486.2950333102.

Adding to 115000440 its reverse (44000511), we get a palindrome (159000951).

It can be divided in two parts, 115000 and 440, that added together give a triangular number (115440 = T₄₈₀).

The spelling of 115000440 in words is "one hundred fifteen million, four hundred forty", and thus it is an aban number.