120112640 has 40 divisors (see below), whose sum is σ = 287994960. Its totient is φ = 48044032.

The previous prime is 120112639. The next prime is 120112651. The reversal of 120112640 is 46211021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20900 + ... + 26019.

It is an arithmetic number, because the mean of its divisors is an integer number (7199874).

Almost surely, 2^120112640 is an apocalyptic number.

120112640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120112640 is an abundant number, since it is smaller than the sum of its proper divisors (167882320).

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

120112640 is an frugal number, since it uses more digits than its factorization.

120112640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46942 (or 46926 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 120112640 is about 10959.5912332532. The cubic root of 120112640 is about 493.3966966742.

Adding to 120112640 its reverse (46211021), we get a palindrome (166323661).

The spelling of 120112640 in words is "one hundred twenty million, one hundred twelve thousand, six hundred forty".