120040256 has 56 divisors (see below), whose sum is σ = 278075136. Its totient is φ = 50342400.

The previous prime is 120040241. The next prime is 120040259. The reversal of 120040256 is 652040021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120040259) 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, 18206 + ... + 23906.

Almost surely, 2^120040256 is an apocalyptic number.

120040256 is a gapful number since it is divisible by the number (16) 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 120040256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139037568).

120040256 is an abundant number, since it is smaller than the sum of its proper divisors (158034880).

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

120040256 is an equidigital number, since it uses as much as digits as its factorization.

120040256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767 (or 5757 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 120040256 is about 10956.2884226366. The cubic root of 120040256 is about 493.2975641626.

Adding to 120040256 its reverse (652040021), we get a palindrome (772080277).

The spelling of 120040256 in words is "one hundred twenty million, forty thousand, two hundred fifty-six".