30212262528 has 128 divisors (see below), whose sum is σ = 92662120320. Its totient is φ = 8543010816.

The previous prime is 30212262527. The next prime is 30212262557. The reversal of 30212262528 is 82526221203.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (30212262527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202800 + ... + 318672.

It is an arithmetic number, because the mean of its divisors is an integer number (723922815).

Almost surely, 2^30212262528 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 30212262528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46331060160).

30212262528 is an abundant number, since it is smaller than the sum of its proper divisors (62449857792).

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

30212262528 is a wasteful number, since it uses less digits than its factorization.

30212262528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115994 (or 115982 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 30212262528 in words is "thirty billion, two hundred twelve million, two hundred sixty-two thousand, five hundred twenty-eight".