120445520 has 80 divisors (see below), whose sum is σ = 303730560. Its totient is φ = 44155392.

The previous prime is 120445517. The next prime is 120445529. The reversal of 120445520 is 25544021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120445529) 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, 185837 + ... + 186483.

It is an arithmetic number, because the mean of its divisors is an integer number (3796632).

Almost surely, 2^120445520 is an apocalyptic number.

120445520 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 120445520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151865280).

120445520 is an abundant number, since it is smaller than the sum of its proper divisors (183285040).

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

120445520 is a wasteful number, since it uses less digits than its factorization.

120445520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 120445520 is about 10974.7674235038. The cubic root of 120445520 is about 493.8520758888.

Adding to 120445520 its reverse (25544021), we get a palindrome (145989541).

The spelling of 120445520 in words is "one hundred twenty million, four hundred forty-five thousand, five hundred twenty".