30305055280 has 40 divisors (see below), whose sum is σ = 70503670512. Its totient is φ = 12114380544.

The previous prime is 30305055257. The next prime is 30305055293. The reversal of 30305055280 is 8255050303.

It is a tau number, because it is divible by the number of its divisors (40).

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, 9159 + ... + 246361.

Almost surely, 2^30305055280 is an apocalyptic number.

It is an amenable number.

30305055280 is an abundant number, since it is smaller than the sum of its proper divisors (40198615232).

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

30305055280 is a wasteful number, since it uses less digits than its factorization.

30305055280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238813 (or 238807 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 30305055280 in words is "thirty billion, three hundred five million, fifty-five thousand, two hundred eighty".