30220320420 has 72 divisors (see below), whose sum is σ = 96492963840. Its totient is φ = 7634606400.

The previous prime is 30220320371. The next prime is 30220320421. The reversal of 30220320420 is 2402302203.

30220320420 is a `hidden beast` number, since 3 + 0 + 220 + 3 + 20 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30220320393 and 30220320402.

It is not an unprimeable number, because it can be changed into a prime (30220320421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4414756 + ... + 4421595.

Almost surely, 2^30220320420 is an apocalyptic number.

30220320420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30220320420 is an abundant number, since it is smaller than the sum of its proper divisors (66272643420).

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

30220320420 is a wasteful number, since it uses less digits than its factorization.

30220320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8836385 (or 8836380 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 30220320420 its reverse (2402302203), we get a palindrome (32622622623).

The spelling of 30220320420 in words is "thirty billion, two hundred twenty million, three hundred twenty thousand, four hundred twenty".