30242021432 has 128 divisors (see below), whose sum is σ = 67459392000. Its totient is φ = 12442042368.

The previous prime is 30242021419. The next prime is 30242021471. The reversal of 30242021432 is 23412024203.

It is a junction number, because it is equal to n+sod(n) for n = 30242021398 and 30242021407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67353944 + ... + 67354392.

It is an arithmetic number, because the mean of its divisors is an integer number (527026500).

Almost surely, 2^30242021432 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 30242021432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33729696000).

30242021432 is an abundant number, since it is smaller than the sum of its proper divisors (37217370568).

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

30242021432 is a wasteful number, since it uses less digits than its factorization.

30242021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30242021432 its reverse (23412024203), we get a palindrome (53654045635).

The spelling of 30242021432 in words is "thirty billion, two hundred forty-two million, twenty-one thousand, four hundred thirty-two".