328781308 has 12 divisors (see below), whose sum is σ = 581832720. Its totient is φ = 162543392.

The previous prime is 328781291. The next prime is 328781351. The reversal of 328781308 is 803187823.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461416 + ... + 462127.

It is an arithmetic number, because the mean of its divisors is an integer number (48486060).

Almost surely, 2^328781308 is an apocalyptic number.

It is an amenable number.

328781308 is a deficient number, since it is larger than the sum of its proper divisors (253051412).

328781308 is a wasteful number, since it uses less digits than its factorization.

328781308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923636 (or 923634 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 328781308 is about 18132.3277049583. The cubic root of 328781308 is about 690.1905991697.

The spelling of 328781308 in words is "three hundred twenty-eight million, seven hundred eighty-one thousand, three hundred eight".