728230052 has 24 divisors (see below), whose sum is σ = 1435107072. Its totient is φ = 320335200.

The previous prime is 728230051. The next prime is 728230067. The reversal of 728230052 is 250032827.

It is a junction number, because it is equal to n+sod(n) for n = 728229997 and 728230024.

It is not an unprimeable number, because it can be changed into a prime (728230051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265583 + ... + 268310.

It is an arithmetic number, because the mean of its divisors is an integer number (59796128).

Almost surely, 2^728230052 is an apocalyptic number.

It is an amenable number.

728230052 is a deficient number, since it is larger than the sum of its proper divisors (706877020).

728230052 is a wasteful number, since it uses less digits than its factorization.

728230052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533939 (or 533937 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 728230052 is about 26985.7379369177. The cubic root of 728230052 is about 899.6830373562.

Adding to 728230052 its reverse (250032827), we get a palindrome (978262879).

The spelling of 728230052 in words is "seven hundred twenty-eight million, two hundred thirty thousand, fifty-two".