328102978 has 16 divisors (see below), whose sum is σ = 563814720. Its totient is φ = 140277456.

The previous prime is 328102961. The next prime is 328102991. The reversal of 328102978 is 879201823.

It is a self number, because there is not a number n which added to its sum of digits gives 328102978.

It is an unprimeable number.

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, 22101 + ... + 33832.

It is an arithmetic number, because the mean of its divisors is an integer number (35238420).

Almost surely, 2^328102978 is an apocalyptic number.

328102978 is a deficient number, since it is larger than the sum of its proper divisors (235711742).

328102978 is a wasteful number, since it uses less digits than its factorization.

328102978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56361.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 328102978 is about 18113.6130575874. The cubic root of 328102978 is about 689.7156133937.

The spelling of 328102978 in words is "three hundred twenty-eight million, one hundred two thousand, nine hundred seventy-eight".