408328904 has 8 divisors (see below), whose sum is σ = 765616710. Its totient is φ = 204164448.

The previous prime is 408328901. The next prime is 408328909. The reversal of 408328904 is 409823804.

It can be written as a sum of positive squares in only one way, i.e., 388168804 + 20160100 = 19702^2 + 4490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (408328901) by changing a digit.

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 as a sum of consecutive naturals, namely, 25520549 + ... + 25520564.

Almost surely, 2^408328904 is an apocalyptic number.

It is an amenable number.

408328904 is a deficient number, since it is larger than the sum of its proper divisors (357287806).

408328904 is a wasteful number, since it uses less digits than its factorization.

408328904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51041119 (or 51041115 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 408328904 is about 20207.1498237629. The cubic root of 408328904 is about 741.8852005490.

The spelling of 408328904 in words is "four hundred eight million, three hundred twenty-eight thousand, nine hundred four".