328843378 has 4 divisors (see below), whose sum is σ = 493265070. Its totient is φ = 164421688.

The previous prime is 328843373. The next prime is 328843391. The reversal of 328843378 is 873348823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873348823 = 16979 ⋅51437.

It can be written as a sum of positive squares in only one way, i.e., 226893969 + 101949409 = 15063^2 + 10097^2 .

It is not an unprimeable number, because it can be changed into a prime (328843373) 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, 82210843 + ... + 82210846.

Almost surely, 2^328843378 is an apocalyptic number.

328843378 is a deficient number, since it is larger than the sum of its proper divisors (164421692).

328843378 is a wasteful number, since it uses less digits than its factorization.

328843378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164421691.

The product of its digits is 774144, while the sum is 46.

The square root of 328843378 is about 18134.0392080750. The cubic root of 328843378 is about 690.2340296951.

Subtracting 328843378 from its reverse (873348823), we obtain a palindrome (544505445).

The spelling of 328843378 in words is "three hundred twenty-eight million, eight hundred forty-three thousand, three hundred seventy-eight".