728202132 has 108 divisors (see below), whose sum is σ = 2254062720. Its totient is φ = 197098272.

The previous prime is 728202127. The next prime is 728202179. The reversal of 728202132 is 231202827.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 728202096 and 728202105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22653 + ... + 44379.

Almost surely, 2^728202132 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 728202132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127031360).

728202132 is an abundant number, since it is smaller than the sum of its proper divisors (1525860588).

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

728202132 is a wasteful number, since it uses less digits than its factorization.

728202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770 (or 21758 counting only the distinct ones).

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

The square root of 728202132 is about 26985.2206216662. The cubic root of 728202132 is about 899.6715394001.

Adding to 728202132 its reverse (231202827), we get a palindrome (959404959).

The spelling of 728202132 in words is "seven hundred twenty-eight million, two hundred two thousand, one hundred thirty-two".