120455880 has 128 divisors (see below), whose sum is σ = 386311680. Its totient is φ = 29941760.

The previous prime is 120455873. The next prime is 120455911. The reversal of 120455880 is 88554021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279265 + ... + 279695.

It is an arithmetic number, because the mean of its divisors is an integer number (3018060).

Almost surely, 2^120455880 is an apocalyptic number.

120455880 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 120455880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193155840).

120455880 is an abundant number, since it is smaller than the sum of its proper divisors (265855800).

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

120455880 is a wasteful number, since it uses less digits than its factorization.

120455880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 120455880 is about 10975.2394051337. The cubic root of 120455880 is about 493.8662348790.

The spelling of 120455880 in words is "one hundred twenty million, four hundred fifty-five thousand, eight hundred eighty".