120440056 has 32 divisors (see below), whose sum is σ = 248676480. Its totient is φ = 54229600.

The previous prime is 120440041. The next prime is 120440057. The reversal of 120440056 is 650044021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120440057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (7771140).

Almost surely, 2^120440056 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 120440056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124338240).

120440056 is an abundant number, since it is smaller than the sum of its proper divisors (128236424).

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

120440056 is a wasteful number, since it uses less digits than its factorization.

120440056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12915 (or 12911 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 120440056 is about 10974.5184860202. The cubic root of 120440056 is about 493.8446079244.

Adding to 120440056 its reverse (650044021), we get a palindrome (770484077).

The spelling of 120440056 in words is "one hundred twenty million, four hundred forty thousand, fifty-six".