329920340 has 24 divisors (see below), whose sum is σ = 693826560. Its totient is φ = 131778848.

The previous prime is 329920319. The next prime is 329920363. The reversal of 329920340 is 43029923.

It is a junction number, because it is equal to n+sod(n) for n = 329920297 and 329920306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 25851.

It is an arithmetic number, because the mean of its divisors is an integer number (28909440).

Almost surely, 2^329920340 is an apocalyptic number.

It is an amenable number.

329920340 is an abundant number, since it is smaller than the sum of its proper divisors (363906220).

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

329920340 is a wasteful number, since it uses less digits than its factorization.

329920340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23671 (or 23669 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 329920340 is about 18163.7094229125. The cubic root of 329920340 is about 690.9867140501.

The spelling of 329920340 in words is "three hundred twenty-nine million, nine hundred twenty thousand, three hundred forty".