30041712720 has 120 divisors (see below), whose sum is σ = 101066335656. Its totient is φ = 7997128704.

The previous prime is 30041712643. The next prime is 30041712721. The reversal of 30041712720 is 2721714003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19769484816 + 10272227904 = 140604^2 + 101352^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30041712721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379284 + ... + 451596.

Almost surely, 2^30041712720 is an apocalyptic number.

30041712720 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 30041712720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50533167828).

30041712720 is an abundant number, since it is smaller than the sum of its proper divisors (71024622936).

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

30041712720 is a wasteful number, since it uses less digits than its factorization.

30041712720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72909 (or 72900 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The spelling of 30041712720 in words is "thirty billion, forty-one million, seven hundred twelve thousand, seven hundred twenty".