120671980 has 48 divisors (see below), whose sum is σ = 297720864. Its totient is φ = 40504320.

The previous prime is 120671963. The next prime is 120672011. The reversal of 120671980 is 89176021.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18237 + ... + 23956.

It is an arithmetic number, because the mean of its divisors is an integer number (6202518).

Almost surely, 2^120671980 is an apocalyptic number.

120671980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120671980 is an abundant number, since it is smaller than the sum of its proper divisors (177048884).

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

120671980 is a wasteful number, since it uses less digits than its factorization.

120671980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42226 (or 42224 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 120671980 is about 10985.0798813664. The cubic root of 120671980 is about 494.1613933913.

The spelling of 120671980 in words is "one hundred twenty million, six hundred seventy-one thousand, nine hundred eighty".