329990394 has 16 divisors (see below), whose sum is σ = 660163680. Its totient is φ = 109966320.

The previous prime is 329990359. The next prime is 329990399. The reversal of 329990394 is 493099923.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (329990399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30529 + ... + 39899.

It is an arithmetic number, because the mean of its divisors is an integer number (41260230).

Almost surely, 2^329990394 is an apocalyptic number.

329990394 is an abundant number, since it is smaller than the sum of its proper divisors (330173286).

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

329990394 is a wasteful number, since it uses less digits than its factorization.

329990394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245.

The product of its (nonzero) digits is 472392, while the sum is 48.

The square root of 329990394 is about 18165.6377262126. The cubic root of 329990394 is about 691.0356177315.

The spelling of 329990394 in words is "three hundred twenty-nine million, nine hundred ninety thousand, three hundred ninety-four".