329648506 has 16 divisors (see below), whose sum is σ = 550903680. Its totient is φ = 146651680.

The previous prime is 329648497. The next prime is 329648507. The reversal of 329648506 is 605846923.

It is not an unprimeable number, because it can be changed into a prime (329648507) 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, 158371 + ... + 160438.

It is an arithmetic number, because the mean of its divisors is an integer number (34431480).

Almost surely, 2^329648506 is an apocalyptic number.

329648506 is a deficient number, since it is larger than the sum of its proper divisors (221255174).

329648506 is a wasteful number, since it uses less digits than its factorization.

329648506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318869.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 329648506 is about 18156.2249930981. The cubic root of 329648506 is about 690.7968851015.

The spelling of 329648506 in words is "three hundred twenty-nine million, six hundred forty-eight thousand, five hundred six".