30208193720 has 16 divisors (see below), whose sum is σ = 67968435960. Its totient is φ = 12083277472.

The previous prime is 30208193693. The next prime is 30208193731. The reversal of 30208193720 is 2739180203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377602382 + ... + 377602461.

Almost surely, 2^30208193720 is an apocalyptic number.

It is an amenable number.

30208193720 is an abundant number, since it is smaller than the sum of its proper divisors (37760242240).

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

30208193720 is a wasteful number, since it uses less digits than its factorization.

30208193720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755204854 (or 755204850 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 30208193720 in words is "thirty billion, two hundred eight million, one hundred ninety-three thousand, seven hundred twenty".