329129990 has 64 divisors (see below), whose sum is σ = 710328960. Its totient is φ = 107412480.

The previous prime is 329129987. The next prime is 329130017. The reversal of 329129990 is 99921923.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147080 + ... + 149300.

It is an arithmetic number, because the mean of its divisors is an integer number (11098890).

Almost surely, 2^329129990 is an apocalyptic number.

329129990 is an abundant number, since it is smaller than the sum of its proper divisors (381198970).

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

329129990 is a wasteful number, since it uses less digits than its factorization.

329129990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 329129990 is about 18141.9400836845. The cubic root of 329129990 is about 690.4345019384.

The spelling of 329129990 in words is "three hundred twenty-nine million, one hundred twenty-nine thousand, nine hundred ninety".