298305420 has 96 divisors (see below), whose sum is σ = 960519168. Its totient is φ = 67759872.

The previous prime is 298305401. The next prime is 298305421. The reversal of 298305420 is 24503892.

It is a happy number.

It is a super-2 number, since 2×298305420² = 177972247202752800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (298305421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68014 + ... + 72266.

It is an arithmetic number, because the mean of its divisors is an integer number (10005408).

Almost surely, 2^298305420 is an apocalyptic number.

298305420 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 298305420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480259584).

298305420 is an abundant number, since it is smaller than the sum of its proper divisors (662213748).

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

298305420 is a wasteful number, since it uses less digits than its factorization.

298305420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439 (or 4437 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 298305420 is about 17271.5204889436. The cubic root of 298305420 is about 668.1701163542.

The spelling of 298305420 in words is "two hundred ninety-eight million, three hundred five thousand, four hundred twenty".