30104028 has 24 divisors (see below), whose sum is σ = 78047760. Its totient is φ = 10034640.

The previous prime is 30104023. The next prime is 30104077. The reversal of 30104028 is 82040103.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30104028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30104021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139263 + ... + 139478.

It is an arithmetic number, because the mean of its divisors is an integer number (3251990).

Almost surely, 2^30104028 is an apocalyptic number.

It is an amenable number.

30104028 is an abundant number, since it is smaller than the sum of its proper divisors (47943732).

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

30104028 is a wasteful number, since it uses less digits than its factorization.

30104028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278754 (or 278746 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 30104028 is about 5486.7137705552. The cubic root of 30104028 is about 311.0819909063.

The spelling of 30104028 in words is "thirty million, one hundred four thousand, twenty-eight".