120389980 has 48 divisors (see below), whose sum is σ = 258170976. Its totient is φ = 47148800.

The previous prime is 120389963. The next prime is 120389987. The reversal of 120389980 is 89983021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120389987) 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, 215862 + ... + 216418.

It is an arithmetic number, because the mean of its divisors is an integer number (5378562).

Almost surely, 2^120389980 is an apocalyptic number.

120389980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120389980 is an abundant number, since it is smaller than the sum of its proper divisors (137780996).

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

120389980 is a wasteful number, since it uses less digits than its factorization.

120389980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 120389980 is about 10972.2367819875. The cubic root of 120389980 is about 493.7761556405.

The spelling of 120389980 in words is "one hundred twenty million, three hundred eighty-nine thousand, nine hundred eighty".