30204805 has 8 divisors (see below), whose sum is σ = 37495800. Its totient is φ = 23330496.

The previous prime is 30204799. The next prime is 30204827. The reversal of 30204805 is 50840203.

It can be written as a sum of positive squares in 4 ways, for example, as 4255969 + 25948836 = 2063^2 + 5094^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30204805 - 2⁷ = 30204677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104010 + ... + 104299.

It is an arithmetic number, because the mean of its divisors is an integer number (4686975).

Almost surely, 2^30204805 is an apocalyptic number.

It is an amenable number.

30204805 is a deficient number, since it is larger than the sum of its proper divisors (7290995).

30204805 is a wasteful number, since it uses less digits than its factorization.

30204805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208343.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30204805 is about 5495.8898278623. The cubic root of 30204805 is about 311.4287329008.

The spelling of 30204805 in words is "thirty million, two hundred four thousand, eight hundred five".