120728232 has 112 divisors (see below), whose sum is σ = 344163840. Its totient is φ = 39680928.

The previous prime is 120728197. The next prime is 120728263. The reversal of 120728232 is 232827021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 120728196 and 120728205.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 740583 + ... + 740745.

Almost surely, 2^120728232 is an apocalyptic number.

120728232 is a gapful number since it is divisible by the number (12) 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 120728232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172081920).

120728232 is an abundant number, since it is smaller than the sum of its proper divisors (223435608).

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

120728232 is a wasteful number, since it uses less digits than its factorization.

120728232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 295 counting only the distinct ones).

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

The square root of 120728232 is about 10987.6399649788. The cubic root of 120728232 is about 494.2381669402.

The spelling of 120728232 in words is "one hundred twenty million, seven hundred twenty-eight thousand, two hundred thirty-two".