298120220388 has 120 divisors (see below), whose sum is σ = 787882788000. Its totient is φ = 98287765632.

The previous prime is 298120220381. The next prime is 298120220389. The reversal of 298120220388 is 883022021892.

298120220388 is a `hidden beast` number, since 29 + 8 + 1 + 20 + 220 + 388 = 666.

It is not an unprimeable number, because it can be changed into a prime (298120220381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22839688 + ... + 22852736.

It is an arithmetic number, because the mean of its divisors is an integer number (6565689900).

Almost surely, 2^298120220388 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 298120220388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393941394000).

298120220388 is an abundant number, since it is smaller than the sum of its proper divisors (489762567612).

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

298120220388 is a wasteful number, since it uses less digits than its factorization.

298120220388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13831 (or 13820 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 298120220388 in words is "two hundred ninety-eight billion, one hundred twenty million, two hundred twenty thousand, three hundred eighty-eight".