328768904 has 8 divisors (see below), whose sum is σ = 616441710. Its totient is φ = 164384448.

The previous prime is 328768889. The next prime is 328768907. The reversal of 328768904 is 409867823.

It can be written as a sum of positive squares in only one way, i.e., 326524900 + 2244004 = 18070^2 + 1498^2 .

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

It is a super-2 number, since 2×328768904² = 216177984474722432, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 328768904 parts by 25642 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (328768907) 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, 20548049 + ... + 20548064.

Almost surely, 2^328768904 is an apocalyptic number.

It is an amenable number.

328768904 is a deficient number, since it is larger than the sum of its proper divisors (287672806).

328768904 is a wasteful number, since it uses less digits than its factorization.

328768904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41096119 (or 41096115 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 328768904 is about 18131.9856607047. The cubic root of 328768904 is about 690.1819194063.

The spelling of 328768904 in words is "three hundred twenty-eight million, seven hundred sixty-eight thousand, nine hundred four".