30020709888 has 560 divisors, whose sum is σ = 101437570080. Its totient is φ = 8802680832.

The previous prime is 30020709841. The next prime is 30020709889. The reversal of 30020709888 is 88890702003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020709889) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 111601018 + ... + 111601286.

It is an arithmetic number, because the mean of its divisors is an integer number (181138518).

Almost surely, 2^30020709888 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 30020709888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50718785040).

30020709888 is an abundant number, since it is smaller than the sum of its proper divisors (71416860192).

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

30020709888 is an equidigital number, since it uses as much as digits as its factorization.

30020709888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 30020709888 in words is "thirty billion, twenty million, seven hundred nine thousand, eight hundred eighty-eight".