30209609208 has 96 divisors (see below), whose sum is σ = 79818341760. Its totient is φ = 9526697280.

The previous prime is 30209609207. The next prime is 30209609219. The reversal of 30209609208 is 80290690203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30209609203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7683003 + ... + 7686933.

It is an arithmetic number, because the mean of its divisors is an integer number (831441060).

Almost surely, 2^30209609208 is an apocalyptic number.

30209609208 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30209609208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39909170880).

30209609208 is an abundant number, since it is smaller than the sum of its proper divisors (49608732552).

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

30209609208 is a wasteful number, since it uses less digits than its factorization.

30209609208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 30209609208 in words is "thirty billion, two hundred nine million, six hundred nine thousand, two hundred eight".