30072939520 has 176 divisors, whose sum is σ = 78067830960. Its totient is φ = 11049762816.

The previous prime is 30072939503. The next prime is 30072939521. The reversal of 30072939520 is 2593927003.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 741581824 + 29331357696 = 27232^2 + 171264^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (30072939521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15241254 + ... + 15243226.

Almost surely, 2^30072939520 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 30072939520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39033915480).

30072939520 is an abundant number, since it is smaller than the sum of its proper divisors (47994891440).

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

30072939520 is a wasteful number, since it uses less digits than its factorization.

30072939520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 40.

The spelling of 30072939520 in words is "thirty billion, seventy-two million, nine hundred thirty-nine thousand, five hundred twenty".