120261920 has 24 divisors (see below), whose sum is σ = 284119164. Its totient is φ = 48104704.

The previous prime is 120261907. The next prime is 120261959. The reversal of 120261920 is 29162021.

It can be written as a sum of positive squares in 2 ways, for example, as 111429136 + 8832784 = 10556^2 + 2972^2 .

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 3 ways as a sum of consecutive naturals, for example, 375659 + ... + 375978.

Almost surely, 2^120261920 is an apocalyptic number.

120261920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120261920 is an abundant number, since it is smaller than the sum of its proper divisors (163857244).

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

120261920 is an equidigital number, since it uses as much as digits as its factorization.

120261920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751652 (or 751644 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 120261920 is about 10966.3995914794. The cubic root of 120261920 is about 493.6010153499.

The spelling of 120261920 in words is "one hundred twenty million, two hundred sixty-one thousand, nine hundred twenty".