120757920 has 96 divisors (see below), whose sum is σ = 400438080. Its totient is φ = 30504960.

The previous prime is 120757913. The next prime is 120757933. The reversal of 120757920 is 29757021.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2500 + ... + 15740.

It is an arithmetic number, because the mean of its divisors is an integer number (4171230).

Almost surely, 2^120757920 is an apocalyptic number.

120757920 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 120757920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200219040).

120757920 is an abundant number, since it is smaller than the sum of its proper divisors (279680160).

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

120757920 is a wasteful number, since it uses less digits than its factorization.

120757920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13278 (or 13270 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 120757920 is about 10988.9908544870. The cubic root of 120757920 is about 494.2786759410.

The spelling of 120757920 in words is "one hundred twenty million, seven hundred fifty-seven thousand, nine hundred twenty".