328395138 has 16 divisors (see below), whose sum is σ = 657011520. Its totient is φ = 109428176.

The previous prime is 328395047. The next prime is 328395139. The reversal of 328395138 is 831593823.

It is a self number, because there is not a number n which added to its sum of digits gives 328395138.

It is not an unprimeable number, because it can be changed into a prime (328395139) 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 in 7 ways as a sum of consecutive naturals, for example, 14956 + ... + 29672.

It is an arithmetic number, because the mean of its divisors is an integer number (41063220).

Almost surely, 2^328395138 is an apocalyptic number.

328395138 is an abundant number, since it is smaller than the sum of its proper divisors (328616382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328395138 is a wasteful number, since it uses less digits than its factorization.

328395138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441.

The product of its digits is 155520, while the sum is 42.

The square root of 328395138 is about 18121.6759158749. The cubic root of 328395138 is about 689.9202722415.

The spelling of 328395138 in words is "three hundred twenty-eight million, three hundred ninety-five thousand, one hundred thirty-eight".