120684900 has 144 divisors (see below), whose sum is σ = 403724160. Its totient is φ = 27264000.

The previous prime is 120684899. The next prime is 120684911. The reversal of 120684900 is 9486021.

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

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 47 ways as a sum of consecutive naturals, for example, 211816 + ... + 212384.

It is an arithmetic number, because the mean of its divisors is an integer number (2803640).

Almost surely, 2^120684900 is an apocalyptic number.

120684900 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 120684900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201862080).

120684900 is an abundant number, since it is smaller than the sum of its proper divisors (283039260).

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

120684900 is a wasteful number, since it uses less digits than its factorization.

120684900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 120684900 is about 10985.6679359973. The cubic root of 120684900 is about 494.1790289058.

The spelling of 120684900 in words is "one hundred twenty million, six hundred eighty-four thousand, nine hundred".