30229725720 has 128 divisors (see below), whose sum is σ = 96614000640. Its totient is φ = 7540439040.

The previous prime is 30229725719. The next prime is 30229725731. The reversal of 30229725720 is 2752792203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287065 + ... + 377975.

It is an arithmetic number, because the mean of its divisors is an integer number (754796880).

Almost surely, 2^30229725720 is an apocalyptic number.

30229725720 is a gapful number since it is divisible by the number (30) 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 30229725720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48307000320).

30229725720 is an abundant number, since it is smaller than the sum of its proper divisors (66384274920).

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

30229725720 is a wasteful number, since it uses less digits than its factorization.

30229725720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91105 (or 91101 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 30229725720 in words is "thirty billion, two hundred twenty-nine million, seven hundred twenty-five thousand, seven hundred twenty".