30432433220 has 96 divisors (see below), whose sum is σ = 74802341376. Its totient is φ = 10184832000.

The previous prime is 30432433211. The next prime is 30432433223. The reversal of 30432433220 is 2233423403.

It is a super-2 number, since 2×30432433220² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30432433220.

It is not an unprimeable number, because it can be changed into a prime (30432433223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 988784 + ... + 1019096.

It is an arithmetic number, because the mean of its divisors is an integer number (779191056).

Almost surely, 2^30432433220 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 30432433220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37401170688).

30432433220 is an abundant number, since it is smaller than the sum of its proper divisors (44369908156).

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

30432433220 is a wasteful number, since it uses less digits than its factorization.

30432433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30501 (or 30499 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 30432433220 its reverse (2233423403), we get a palindrome (32665856623).

The spelling of 30432433220 in words is "thirty billion, four hundred thirty-two million, four hundred thirty-three thousand, two hundred twenty".