329820045 has 32 divisors (see below), whose sum is σ = 551387520. Its totient is φ = 168134400.

The previous prime is 329820041. The next prime is 329820047. The reversal of 329820045 is 540028923.

It is a happy number.

It is not a de Polignac number, because 329820045 - 2² = 329820041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 329819988 and 329820015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329820041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40182 + ... + 47688.

It is an arithmetic number, because the mean of its divisors is an integer number (17230860).

Almost surely, 2^329820045 is an apocalyptic number.

It is an amenable number.

329820045 is a deficient number, since it is larger than the sum of its proper divisors (221567475).

329820045 is a wasteful number, since it uses less digits than its factorization.

329820045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 329820045 is about 18160.9483507883. The cubic root of 329820045 is about 690.9166875135.

Adding to 329820045 its reverse (540028923), we get a palindrome (869848968).

The spelling of 329820045 in words is "three hundred twenty-nine million, eight hundred twenty thousand, forty-five".