728914284 has 72 divisors (see below), whose sum is σ = 2173703168. Its totient is φ = 201540960.

The previous prime is 728914279. The next prime is 728914339. The reversal of 728914284 is 482419827.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38842 + ... + 54465.

Almost surely, 2^728914284 is an apocalyptic number.

It is an amenable number.

728914284 is an abundant number, since it is smaller than the sum of its proper divisors (1444788884).

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

728914284 is a wasteful number, since it uses less digits than its factorization.

728914284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93355 (or 93350 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 728914284 is about 26998.4126200042. The cubic root of 728914284 is about 899.9647245433.

The spelling of 728914284 in words is "seven hundred twenty-eight million, nine hundred fourteen thousand, two hundred eighty-four".