30904078308 has 24 divisors (see below), whose sum is σ = 72153611712. Its totient is φ = 10295060064.

The previous prime is 30904078297. The next prime is 30904078321. The reversal of 30904078308 is 80387040903.

It is a super-2 number, since 2×30904078308² (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 30904078308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766960 + ... + 806247.

It is an arithmetic number, because the mean of its divisors is an integer number (3006400488).

Almost surely, 2^30904078308 is an apocalyptic number.

It is an amenable number.

30904078308 is an abundant number, since it is smaller than the sum of its proper divisors (41249533404).

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

30904078308 is a wasteful number, since it uses less digits than its factorization.

30904078308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574851 (or 1574849 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 30904078308 in words is "thirty billion, nine hundred four million, seventy-eight thousand, three hundred eight".