120555240 has 64 divisors (see below), whose sum is σ = 389491200. Its totient is φ = 29674752.

The previous prime is 120555203. The next prime is 120555241. The reversal of 120555240 is 42555021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 120555240.

It is not an unprimeable number, because it can be changed into a prime (120555241) 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, 37080 + ... + 40199.

It is an arithmetic number, because the mean of its divisors is an integer number (6085800).

Almost surely, 2^120555240 is an apocalyptic number.

120555240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120555240 is an abundant number, since it is smaller than the sum of its proper divisors (268935960).

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

120555240 is a wasteful number, since it uses less digits than its factorization.

120555240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77306 (or 77302 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 120555240 is about 10979.7650248081. The cubic root of 120555240 is about 494.0019887696.

The spelling of 120555240 in words is "one hundred twenty million, five hundred fifty-five thousand, two hundred forty".