30912739404 has 96 divisors (see below), whose sum is σ = 75914356224. Its totient is φ = 9771632640.

The previous prime is 30912739387. The next prime is 30912739411. The reversal of 30912739404 is 40493721903.

It is a super-2 number, since 2×30912739404² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 30276414 + ... + 30277434.

It is an arithmetic number, because the mean of its divisors is an integer number (790774544).

Almost surely, 2^30912739404 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 30912739404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37957178112).

30912739404 is an abundant number, since it is smaller than the sum of its proper divisors (45001616820).

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

30912739404 is a wasteful number, since it uses less digits than its factorization.

30912739404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 30912739404 in words is "thirty billion, nine hundred twelve million, seven hundred thirty-nine thousand, four hundred four".