120228656 has 40 divisors (see below), whose sum is σ = 247156800. Its totient is φ = 56496960.

The previous prime is 120228617. The next prime is 120228697. The reversal of 120228656 is 656822021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38315 + ... + 41333.

It is an arithmetic number, because the mean of its divisors is an integer number (6178920).

Almost surely, 2^120228656 is an apocalyptic number.

120228656 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 120228656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123578400).

120228656 is an abundant number, since it is smaller than the sum of its proper divisors (126928144).

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

120228656 is a wasteful number, since it uses less digits than its factorization.

120228656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 120228656 is about 10964.8828539114. The cubic root of 120228656 is about 493.5555017514. Note that the first 4 decimals are identical.

The spelling of 120228656 in words is "one hundred twenty million, two hundred twenty-eight thousand, six hundred fifty-six".