328004819 has 4 divisors (see below), whose sum is σ = 339315360. Its totient is φ = 316694280.

The previous prime is 328004813. The next prime is 328004843. The reversal of 328004819 is 918400823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918400823 = 31 ⋅29625833.

It is a cyclic number.

It is not a de Polignac number, because 328004819 - 2⁸ = 328004563 is a prime.

It is a super-2 number, since 2×328004819² = 215174322574445522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328004813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5655227 + ... + 5655284.

It is an arithmetic number, because the mean of its divisors is an integer number (84828840).

Almost surely, 2^328004819 is an apocalyptic number.

328004819 is a deficient number, since it is larger than the sum of its proper divisors (11310541).

328004819 is a wasteful number, since it uses less digits than its factorization.

328004819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310540.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 328004819 is about 18110.9033181672. The cubic root of 328004819 is about 689.6468254907.

It can be divided in two parts, 328004 and 819, that added together give a palindrome (328823).

The spelling of 328004819 in words is "three hundred twenty-eight million, four thousand, eight hundred nineteen".