329899420 has 24 divisors (see below), whose sum is σ = 693913248. Its totient is φ = 131745600.

The previous prime is 329899369. The next prime is 329899429. The reversal of 329899420 is 24998923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329899429) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 451 + ... + 25690.

It is an arithmetic number, because the mean of its divisors is an integer number (28913052).

Almost surely, 2^329899420 is an apocalyptic number.

It is an amenable number.

329899420 is an abundant number, since it is smaller than the sum of its proper divisors (364013828).

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

329899420 is a wasteful number, since it uses less digits than its factorization.

329899420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26781 (or 26779 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 329899420 is about 18163.1335402237. The cubic root of 329899420 is about 690.9721087592.

The spelling of 329899420 in words is "three hundred twenty-nine million, eight hundred ninety-nine thousand, four hundred twenty".