328071434 has 16 divisors (see below), whose sum is σ = 497579976. Its totient is φ = 162220800.

The previous prime is 328071433. The next prime is 328071449. The reversal of 328071434 is 434170823.

It can be written as a sum of positive squares in 4 ways, for example, as 327501409 + 570025 = 18097^2 + 755^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 328071434.

It is not an unprimeable number, because it can be changed into a prime (328071433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74864 + ... + 79124.

Almost surely, 2^328071434 is an apocalyptic number.

328071434 is a deficient number, since it is larger than the sum of its proper divisors (169508542).

328071434 is a wasteful number, since it uses less digits than its factorization.

328071434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 328071434 is about 18112.7423103184. The cubic root of 328071434 is about 689.6935094730.

The spelling of 328071434 in words is "three hundred twenty-eight million, seventy-one thousand, four hundred thirty-four".