728314212 has 12 divisors (see below), whose sum is σ = 1699399856. Its totient is φ = 242771400.

The previous prime is 728314199. The next prime is 728314219. The reversal of 728314212 is 212413827.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 728314212.

It is not an unprimeable number, because it can be changed into a prime (728314219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30346414 + ... + 30346437.

Almost surely, 2^728314212 is an apocalyptic number.

It is an amenable number.

728314212 is an abundant number, since it is smaller than the sum of its proper divisors (971085644).

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

728314212 is a wasteful number, since it uses less digits than its factorization.

728314212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60692858 (or 60692856 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 728314212 is about 26987.2972340692. The cubic root of 728314212 is about 899.7176941736.

The spelling of 728314212 in words is "seven hundred twenty-eight million, three hundred fourteen thousand, two hundred twelve".