30421708434 has 128 divisors (see below), whose sum is σ = 73780761600. Its totient is φ = 9235641600.

The previous prime is 30421708433. The next prime is 30421708439. The reversal of 30421708434 is 43480712403.

30421708434 is a `hidden beast` number, since 3 + 0 + 4 + 217 + 0 + 8 + 434 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30421708433) 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 63 ways as a sum of consecutive naturals, for example, 27580327 + ... + 27581429.

It is an arithmetic number, because the mean of its divisors is an integer number (576412200).

Almost surely, 2^30421708434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421708434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36890380800).

30421708434 is an abundant number, since it is smaller than the sum of its proper divisors (43359053166).

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

30421708434 is a wasteful number, since it uses less digits than its factorization.

30421708434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 30421708434 in words is "thirty billion, four hundred twenty-one million, seven hundred eight thousand, four hundred thirty-four".