120729180 has 96 divisors (see below), whose sum is σ = 397168128. Its totient is φ = 27014400.

The previous prime is 120729179. The next prime is 120729197. The reversal of 120729180 is 81927021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1545 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (4137168).

Almost surely, 2^120729180 is an apocalyptic number.

120729180 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 120729180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198584064).

120729180 is an abundant number, since it is smaller than the sum of its proper divisors (276438948).

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

120729180 is a wasteful number, since it uses less digits than its factorization.

120729180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14107 (or 14105 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 120729180 is about 10987.6831042764. The cubic root of 120729180 is about 494.2394605801.

The spelling of 120729180 in words is "one hundred twenty million, seven hundred twenty-nine thousand, one hundred eighty".