30403450220420 has 96 divisors (see below), whose sum is σ = 67835183270400. Its totient is φ = 11406728935424.

The previous prime is 30403450220419. The next prime is 30403450220441. The reversal of 30403450220420 is 2402205430403.

It is a happy 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, 190211654 + ... + 190371426.

It is an arithmetic number, because the mean of its divisors is an integer number (706616492400).

Almost surely, 2^{30403450220420} 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 30403450220420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33917591635200).

30403450220420 is an abundant number, since it is smaller than the sum of its proper divisors (37431733049980).

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

30403450220420 is a wasteful number, since it uses less digits than its factorization.

30403450220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161717 (or 161715 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 30403450220420 its reverse (2402205430403), we get a palindrome (32805655650823).

The spelling of 30403450220420 in words is "thirty trillion, four hundred three billion, four hundred fifty million, two hundred twenty thousand, four hundred twenty".