298918320 has 80 divisors (see below), whose sum is σ = 929806560. Its totient is φ = 79439872.

The previous prime is 298918309. The next prime is 298918339. The reversal of 298918320 is 23819892.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74116 + ... + 78044.

It is an arithmetic number, because the mean of its divisors is an integer number (11622582).

Almost surely, 2^298918320 is an apocalyptic number.

298918320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298918320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464903280).

298918320 is an abundant number, since it is smaller than the sum of its proper divisors (630888240).

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

298918320 is a wasteful number, since it uses less digits than its factorization.

298918320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262 (or 4256 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 298918320 is about 17289.2544662863. The cubic root of 298918320 is about 668.6274120074.

The spelling of 298918320 in words is "two hundred ninety-eight million, nine hundred eighteen thousand, three hundred twenty".