120260556 has 36 divisors (see below), whose sum is σ = 327377232. Its totient is φ = 37003104.

The previous prime is 120260549. The next prime is 120260573. The reversal of 120260556 is 655062021.

120260556 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 605 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128016 + ... + 128951.

It is an arithmetic number, because the mean of its divisors is an integer number (9093812).

Almost surely, 2^120260556 is an apocalyptic number.

It is an amenable number.

120260556 is an abundant number, since it is smaller than the sum of its proper divisors (207116676).

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

120260556 is a wasteful number, since it uses less digits than its factorization.

120260556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256990 (or 256985 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 120260556 is about 10966.3374013387. The cubic root of 120260556 is about 493.5991492166.

The spelling of 120260556 in words is "one hundred twenty million, two hundred sixty thousand, five hundred fifty-six".