30320404 has 12 divisors (see below), whose sum is σ = 53788084. Its totient is φ = 14952384.

The previous prime is 30320393. The next prime is 30320453. The reversal of 30320404 is 40402303.

It can be written as a sum of positive squares in 2 ways, for example, as 18404100 + 11916304 = 4290^2 + 3452^2 .

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 3 ways as a sum of consecutive naturals, for example, 51627 + ... + 52210.

Almost surely, 2^30320404 is an apocalyptic number.

It is an amenable number.

30320404 is a deficient number, since it is larger than the sum of its proper divisors (23467680).

30320404 is a wasteful number, since it uses less digits than its factorization.

30320404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103914 (or 103912 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30320404 is about 5506.3966439043. The cubic root of 30320404 is about 311.8255242981.

Adding to 30320404 its reverse (40402303), we get a palindrome (70722707).

The spelling of 30320404 in words is "thirty million, three hundred twenty thousand, four hundred four".