298638825480 has 768 divisors, whose sum is σ = 1114825420800. Its totient is φ = 71562839040.

The previous prime is 298638825473. The next prime is 298638825481. The reversal of 298638825480 is 84528836892.

298638825480 is a `hidden beast` number, since 2 + 9 + 8 + 6 + 3 + 8 + 82 + 548 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (298638825481) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 709355670 + ... + 709356090.

It is an arithmetic number, because the mean of its divisors is an integer number (1451595600).

Almost surely, 2^298638825480 is an apocalyptic number.

298638825480 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 298638825480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557412710400).

298638825480 is an abundant number, since it is smaller than the sum of its proper divisors (816186595320).

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

298638825480 is a wasteful number, since it uses less digits than its factorization.

298638825480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 63.

The spelling of 298638825480 in words is "two hundred ninety-eight billion, six hundred thirty-eight million, eight hundred twenty-five thousand, four hundred eighty".