329445428 has 24 divisors (see below), whose sum is σ = 621384288. Its totient is φ = 151927776.

The previous prime is 329445421. The next prime is 329445433. The reversal of 329445428 is 824544923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329445421) by changing a digit.

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, 102575 + ... + 105737.

It is an arithmetic number, because the mean of its divisors is an integer number (25891012).

Almost surely, 2^329445428 is an apocalyptic number.

It is an amenable number.

329445428 is a deficient number, since it is larger than the sum of its proper divisors (291938860).

329445428 is a wasteful number, since it uses less digits than its factorization.

329445428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183 (or 5181 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 329445428 is about 18150.6316143544. The cubic root of 329445428 is about 690.6550021923.

The spelling of 329445428 in words is "three hundred twenty-nine million, four hundred forty-five thousand, four hundred twenty-eight".