329440020 has 96 divisors (see below), whose sum is σ = 1135319808. Its totient is φ = 69507072.

The previous prime is 329440019. The next prime is 329440039. The reversal of 329440020 is 20044923.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24709 + ... + 35628.

It is an arithmetic number, because the mean of its divisors is an integer number (11826248).

Almost surely, 2^329440020 is an apocalyptic number.

329440020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

329440020 is an abundant number, since it is smaller than the sum of its proper divisors (805879788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

329440020 is a wasteful number, since it uses less digits than its factorization.

329440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60369 (or 60367 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 329440020 is about 18150.4826382110. The cubic root of 329440020 is about 690.6512230306.

Adding to 329440020 its reverse (20044923), we get a palindrome (349484943).

The spelling of 329440020 in words is "three hundred twenty-nine million, four hundred forty thousand, twenty".