30530278000 has 40 divisors (see below), whose sum is σ = 73822217040. Its totient is φ = 12212110400.

The previous prime is 30530277991. The next prime is 30530278033. The reversal of 30530278000 is 87203503.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30530278000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7630570 + ... + 7634569.

It is an arithmetic number, because the mean of its divisors is an integer number (1845555426).

Almost surely, 2^30530278000 is an apocalyptic number.

It is an amenable number.

30530278000 is an abundant number, since it is smaller than the sum of its proper divisors (43291939040).

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

30530278000 is a wasteful number, since it uses less digits than its factorization.

30530278000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265162 (or 15265146 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 30530278000 in words is "thirty billion, five hundred thirty million, two hundred seventy-eight thousand".