120518280 has 112 divisors (see below), whose sum is σ = 406661580. Its totient is φ = 32130432.

The previous prime is 120518269. The next prime is 120518303. The reversal of 120518280 is 82815021.

120518280 is a `hidden beast` number, since 120 + 518 + 28 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 120165444 + 352836 = 10962^2 + 594^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27094 + ... + 31226.

Almost surely, 2^120518280 is an apocalyptic number.

120518280 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 120518280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203330790).

120518280 is an abundant number, since it is smaller than the sum of its proper divisors (286143300).

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

120518280 is an equidigital number, since it uses as much as digits as its factorization.

120518280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 120518280 is about 10978.0817996588. The cubic root of 120518280 is about 493.9514996613.

It can be divided in two parts, 120 and 518280, that added together give a square (518400 = 720²).

The spelling of 120518280 in words is "one hundred twenty million, five hundred eighteen thousand, two hundred eighty".