28050030 has 32 divisors (see below), whose sum is σ = 74800800. Its totient is φ = 7479936.

The previous prime is 28050007. The next prime is 28050037. The reversal of 28050030 is 3005082.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28049985 and 28050012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51675 + ... + 52214.

It is an arithmetic number, because the mean of its divisors is an integer number (2337525).

Almost surely, 2^28050030 is an apocalyptic number.

28050030 is an abundant number, since it is smaller than the sum of its proper divisors (46750770).

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

28050030 is a wasteful number, since it uses less digits than its factorization.

28050030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103905 (or 103899 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 28050030 is about 5296.2279029513. The cubic root of 28050030 is about 303.8396473695.

The spelling of 28050030 in words is "twenty-eight million, fifty thousand, thirty".