115920444 has 48 divisors (see below), whose sum is σ = 285667200. Its totient is φ = 36484416.

The previous prime is 115920419. The next prime is 115920449. The reversal of 115920444 is 444029511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115920449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88039 + ... + 89345.

It is an arithmetic number, because the mean of its divisors is an integer number (5951400).

Almost surely, 2^115920444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115920444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142833600).

115920444 is an abundant number, since it is smaller than the sum of its proper divisors (169746756).

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

115920444 is a wasteful number, since it uses less digits than its factorization.

115920444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 115920444 is about 10766.6356862299. The cubic root of 115920444 is about 487.5883779285.

Adding to 115920444 its reverse (444029511), we get a palindrome (559949955).

The spelling of 115920444 in words is "one hundred fifteen million, nine hundred twenty thousand, four hundred forty-four".