120255688 has 64 divisors (see below), whose sum is σ = 277603200. Its totient is φ = 47662080.

The previous prime is 120255679. The next prime is 120255689. The reversal of 120255688 is 886552021.

It is a super-2 number, since 2×120255688² = 28922860992706688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120255689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55098 + ... + 57238.

It is an arithmetic number, because the mean of its divisors is an integer number (4337550).

Almost surely, 2^120255688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120255688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138801600).

120255688 is an abundant number, since it is smaller than the sum of its proper divisors (157347512).

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

120255688 is a wasteful number, since it uses less digits than its factorization.

120255688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230 (or 2226 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 120255688 is about 10966.1154471399. The cubic root of 120255688 is about 493.5924890304.

The spelling of 120255688 in words is "one hundred twenty million, two hundred fifty-five thousand, six hundred eighty-eight".