30204421 has 8 divisors (see below), whose sum is σ = 32620280. Its totient is φ = 27801792.

The previous prime is 30204403. The next prime is 30204443. The reversal of 30204421 is 12440203.

It can be written as a sum of positive squares in 4 ways, for example, as 1464100 + 28740321 = 1210^2 + 5361^2 .

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 30204421 - 2¹¹ = 30202373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30204395 and 30204404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30204481) 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 7 ways as a sum of consecutive naturals, for example, 1735 + ... + 7963.

It is an arithmetic number, because the mean of its divisors is an integer number (4077535).

Almost surely, 2^30204421 is an apocalyptic number.

It is an amenable number.

30204421 is a deficient number, since it is larger than the sum of its proper divisors (2415859).

30204421 is a wasteful number, since it uses less digits than its factorization.

30204421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30204421 is about 5495.8548925531. The cubic root of 30204421 is about 311.4274131423.

Adding to 30204421 its reverse (12440203), we get a palindrome (42644624).

It can be divided in two parts, 30204 and 421, that added together give a square (30625 = 175²).

The spelling of 30204421 in words is "thirty million, two hundred four thousand, four hundred twenty-one".