328517890 has 8 divisors (see below), whose sum is σ = 591332220. Its totient is φ = 131407152.

The previous prime is 328517873. The next prime is 328517909. The reversal of 328517890 is 98715823.

It can be written as a sum of positive squares in 2 ways, for example, as 307897209 + 20620681 = 17547^2 + 4541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16425885 + ... + 16425904.

Almost surely, 2^328517890 is an apocalyptic number.

328517890 is a deficient number, since it is larger than the sum of its proper divisors (262814330).

328517890 is a wasteful number, since it uses less digits than its factorization.

328517890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32851796.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 328517890 is about 18125.0624826509. The cubic root of 328517890 is about 690.0062241264.

The spelling of 328517890 in words is "three hundred twenty-eight million, five hundred seventeen thousand, eight hundred ninety".