120992880 has 120 divisors (see below), whose sum is σ = 392506128. Its totient is φ = 30829568.

The previous prime is 120992873. The next prime is 120992881. The reversal of 120992880 is 88299021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120992881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126484 + ... + 127436.

Almost surely, 2^120992880 is an apocalyptic number.

120992880 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 120992880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196253064).

120992880 is an abundant number, since it is smaller than the sum of its proper divisors (271513248).

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

120992880 is a wasteful number, since it uses less digits than its factorization.

120992880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 120992880 is about 10999.6763588753. The cubic root of 120992880 is about 494.5990427179.

The spelling of 120992880 in words is "one hundred twenty million, nine hundred ninety-two thousand, eight hundred eighty".