120223728 has 120 divisors (see below), whose sum is σ = 362061648. Its totient is φ = 37103616.

The previous prime is 120223723. The next prime is 120223787. The reversal of 120223728 is 827322021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120223721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163650 + ... + 164382.

Almost surely, 2^120223728 is an apocalyptic number.

120223728 is a gapful number since it is divisible by the number (18) 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 120223728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181030824).

120223728 is an abundant number, since it is smaller than the sum of its proper divisors (241837920).

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

120223728 is a wasteful number, since it uses less digits than its factorization.

120223728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 120223728 is about 10964.6581342056. The cubic root of 120223728 is about 493.5487582821.

Adding to 120223728 its reverse (827322021), we get a palindrome (947545749).

The spelling of 120223728 in words is "one hundred twenty million, two hundred twenty-three thousand, seven hundred twenty-eight".