328907732 has 6 divisors (see below), whose sum is σ = 575588538. Its totient is φ = 164453864.

The previous prime is 328907729. The next prime is 328907743. The reversal of 328907732 is 237709823.

It can be written as a sum of positive squares in only one way, i.e., 322777156 + 6130576 = 17966^2 + 2476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 328907732.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41113463 + ... + 41113470.

It is an arithmetic number, because the mean of its divisors is an integer number (95931423).

Almost surely, 2^328907732 is an apocalyptic number.

It is an amenable number.

328907732 is a deficient number, since it is larger than the sum of its proper divisors (246680806).

328907732 is a wasteful number, since it uses less digits than its factorization.

328907732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82226937 (or 82226935 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 328907732 is about 18135.8135191118. The cubic root of 328907732 is about 690.2790525707.

The spelling of 328907732 in words is "three hundred twenty-eight million, nine hundred seven thousand, seven hundred thirty-two".