30798988220 has 576 divisors, whose sum is σ = 95560819200. Its totient is φ = 8169154560.

The previous prime is 30798988211. The next prime is 30798988249. The reversal of 30798988220 is 2288989703.

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 114494246 + ... + 114494514.

It is an arithmetic number, because the mean of its divisors is an integer number (165904200).

Almost surely, 2^30798988220 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 30798988220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47780409600).

30798988220 is an abundant number, since it is smaller than the sum of its proper divisors (64761830980).

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

30798988220 is a wasteful number, since it uses less digits than its factorization.

30798988220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 30798988220 in words is "thirty billion, seven hundred ninety-eight million, nine hundred eighty-eight thousand, two hundred twenty".