120385393928 has 36 divisors (see below), whose sum is σ = 229597817085. Its totient is φ = 59176490400.

The previous prime is 120385393927. The next prime is 120385393951. The reversal of 120385393928 is 829393583021.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 81545655844 + 38839738084 = 285562^2 + 197078^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=245342.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120385393928.

It is not an unprimeable number, because it can be changed into a prime (120385393927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59862443 + ... + 59864453.

Almost surely, 2^120385393928 is an apocalyptic number.

It is an amenable number.

120385393928 is a deficient number, since it is larger than the sum of its proper divisors (109212423157).

120385393928 is an frugal number, since it uses more digits than its factorization.

120385393928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 120385393928 in words is "one hundred twenty billion, three hundred eighty-five million, three hundred ninety-three thousand, nine hundred twenty-eight".