328287028 has 24 divisors (see below), whose sum is σ = 582982400. Its totient is φ = 161729568.

The previous prime is 328287023. The next prime is 328287077. The reversal of 328287028 is 820782823.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328287023) 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, 229018 + ... + 230446.

Almost surely, 2^328287028 is an apocalyptic number.

It is an amenable number.

328287028 is a deficient number, since it is larger than the sum of its proper divisors (254695372).

328287028 is a wasteful number, since it uses less digits than its factorization.

328287028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 328287028 is about 18118.6927784540. The cubic root of 328287028 is about 689.8445550557.

The spelling of 328287028 in words is "three hundred twenty-eight million, two hundred eighty-seven thousand, twenty-eight".