30045236820 has 24 divisors (see below), whose sum is σ = 84126663264. Its totient is φ = 8012063136.

The previous prime is 30045236783. The next prime is 30045236849. The reversal of 30045236820 is 2863254003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250376914 + ... + 250377033.

It is an arithmetic number, because the mean of its divisors is an integer number (3505277636).

Almost surely, 2^30045236820 is an apocalyptic number.

30045236820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30045236820 is an abundant number, since it is smaller than the sum of its proper divisors (54081426444).

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

30045236820 is a wasteful number, since it uses less digits than its factorization.

30045236820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500753959 (or 500753957 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 30045236820 in words is "thirty billion, forty-five million, two hundred thirty-six thousand, eight hundred twenty".