120120728 has 32 divisors (see below), whose sum is σ = 277203360. Its totient is φ = 47520000.

The previous prime is 120120727. The next prime is 120120733. The reversal of 120120728 is 827021021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120727) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81773 + ... + 83228.

It is an arithmetic number, because the mean of its divisors is an integer number (8662605).

Almost surely, 2^120120728 is an apocalyptic number.

It is an amenable number.

120120728 is an abundant number, since it is smaller than the sum of its proper divisors (157082632).

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

120120728 is a wasteful number, since it uses less digits than its factorization.

120120728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165027 (or 165023 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 120120728 is about 10959.9602189059. The cubic root of 120120728 is about 493.4077710094.

Adding to 120120728 its reverse (827021021), we get a palindrome (947141749).

The spelling of 120120728 in words is "one hundred twenty million, one hundred twenty thousand, seven hundred twenty-eight".