30028749804 has 36 divisors (see below), whose sum is σ = 79901061240. Its totient is φ = 9482762880.

The previous prime is 30028749781. The next prime is 30028749811. The reversal of 30028749804 is 40894782003.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30028749804.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21950157 + ... + 21951524.

Almost surely, 2^30028749804 is an apocalyptic number.

It is an amenable number.

30028749804 is an abundant number, since it is smaller than the sum of its proper divisors (49872311436).

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

30028749804 is a wasteful number, since it uses less digits than its factorization.

30028749804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43901710 (or 43901705 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 30028749804 in words is "thirty billion, twenty-eight million, seven hundred forty-nine thousand, eight hundred four".