30912004 has 12 divisors (see below), whose sum is σ = 54135004. Its totient is φ = 15444864.

The previous prime is 30911981. The next prime is 30912017. The reversal of 30912004 is 40021903.

It can be written as a sum of positive squares in 2 ways, for example, as 28196100 + 2715904 = 5310^2 + 1648^2 .

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, 8992 + ... + 11944.

Almost surely, 2^30912004 is an apocalyptic number.

It is an amenable number.

30912004 is a deficient number, since it is larger than the sum of its proper divisors (23223000).

30912004 is a wasteful number, since it uses less digits than its factorization.

30912004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 30912004 is about 5559.8564729676. The cubic root of 30912004 is about 313.8405481419.

Adding to 30912004 its reverse (40021903), we get a palindrome (70933907).

The spelling of 30912004 in words is "thirty million, nine hundred twelve thousand, four".