298490353920 has 432 divisors, whose sum is σ = 1135294864704. Its totient is φ = 71804928000.

The previous prime is 298490353831. The next prime is 298490353927. The reversal of 298490353920 is 29353094892.

298490353920 is a `hidden beast` number, since 2 + 9 + 84 + 9 + 0 + 3 + 539 + 20 = 666.

It is not an unprimeable number, because it can be changed into a prime (298490353927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16591330 + ... + 16609310.

It is an arithmetic number, because the mean of its divisors is an integer number (2627997372).

Almost surely, 2^298490353920 is an apocalyptic number.

298490353920 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 298490353920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567647432352).

298490353920 is an abundant number, since it is smaller than the sum of its proper divisors (836804510784).

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

298490353920 is a wasteful number, since it uses less digits than its factorization.

298490353920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18150 (or 18133 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 298490353920 in words is "two hundred ninety-eight billion, four hundred ninety million, three hundred fifty-three thousand, nine hundred twenty".