328861534 has 4 divisors (see below), whose sum is σ = 493292304. Its totient is φ = 164430766.

The previous prime is 328861523. The next prime is 328861543. The reversal of 328861534 is 435168823.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82215382 + ... + 82215385.

It is an arithmetic number, because the mean of its divisors is an integer number (123323076).

Almost surely, 2^328861534 is an apocalyptic number.

328861534 is a deficient number, since it is larger than the sum of its proper divisors (164430770).

328861534 is a wasteful number, since it uses less digits than its factorization.

328861534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164430769.

The product of its digits is 138240, while the sum is 40.

The square root of 328861534 is about 18134.5398066783. The cubic root of 328861534 is about 690.2467324580.

The spelling of 328861534 in words is "three hundred twenty-eight million, eight hundred sixty-one thousand, five hundred thirty-four".