328700290 has 16 divisors (see below), whose sum is σ = 591918840. Its totient is φ = 131422720.

The previous prime is 328700279. The next prime is 328700369. The reversal of 328700290 is 92007823.

It can be written as a sum of positive squares in 4 ways, for example, as 229916569 + 98783721 = 15163^2 + 9939^2 .

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, 22866 + ... + 34354.

Almost surely, 2^328700290 is an apocalyptic number.

328700290 is a deficient number, since it is larger than the sum of its proper divisors (263218550).

328700290 is a wasteful number, since it uses less digits than its factorization.

328700290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14357.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 328700290 is about 18130.0934912096. The cubic root of 328700290 is about 690.1339024594.

The spelling of 328700290 in words is "three hundred twenty-eight million, seven hundred thousand, two hundred ninety".