30399804 has 18 divisors (see below), whose sum is σ = 76844040. Its totient is φ = 10133256.

The previous prime is 30399799. The next prime is 30399821. The reversal of 30399804 is 40899303.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 844439 = 30399804 / (3 + 0 + 3 + 9 + 9 + 8 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422184 + ... + 422255.

Almost surely, 2^30399804 is an apocalyptic number.

It is an amenable number.

30399804 is an abundant number, since it is smaller than the sum of its proper divisors (46444236).

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

30399804 is a wasteful number, since it uses less digits than its factorization.

30399804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844449 (or 844444 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30399804 is about 5513.6017266393. The cubic root of 30399804 is about 312.0974794029.

The spelling of 30399804 in words is "thirty million, three hundred ninety-nine thousand, eight hundred four".