328789994 has 16 divisors (see below), whose sum is σ = 549438120. Its totient is φ = 146516160.

The previous prime is 328789987. The next prime is 328790009. The reversal of 328789994 is 499987823.

It can be written as a sum of positive squares in 4 ways, for example, as 242206969 + 86583025 = 15563^2 + 9305^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217277 + ... + 218784.

Almost surely, 2^328789994 is an apocalyptic number.

328789994 is a deficient number, since it is larger than the sum of its proper divisors (220648126).

328789994 is a wasteful number, since it uses less digits than its factorization.

328789994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436105.

The product of its digits is 7838208, while the sum is 59.

The square root of 328789994 is about 18132.5672203359. The cubic root of 328789994 is about 690.1966771133.

The spelling of 328789994 in words is "three hundred twenty-eight million, seven hundred eighty-nine thousand, nine hundred ninety-four".