298432728 has 256 divisors, whose sum is σ = 973209600. Its totient is φ = 83825280.

The previous prime is 298432721. The next prime is 298432733. The reversal of 298432728 is 827234892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298432721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2349801 + ... + 2349927.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^298432728 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 298432728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486604800).

298432728 is an abundant number, since it is smaller than the sum of its proper divisors (674776872).

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

298432728 is a wasteful number, since it uses less digits than its factorization.

298432728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 298432728 is about 17275.2055848838. The cubic root of 298432728 is about 668.2651546355.

The spelling of 298432728 in words is "two hundred ninety-eight million, four hundred thirty-two thousand, seven hundred twenty-eight".