328643106 has 32 divisors (see below), whose sum is σ = 722532096. Its totient is φ = 98826000.

The previous prime is 328643101. The next prime is 328643111. The reversal of 328643106 is 601346823.

It is an interprime number because it is at equal distance from previous prime (328643101) and next prime (328643111).

It is a super-2 number, since 2×328643106² = 216012582242654472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (328643101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10360 + ... + 27651.

It is an arithmetic number, because the mean of its divisors is an integer number (22579128).

Almost surely, 2^328643106 is an apocalyptic number.

328643106 is an abundant number, since it is smaller than the sum of its proper divisors (393888990).

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

328643106 is a wasteful number, since it uses less digits than its factorization.

328643106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38158.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 328643106 is about 18128.5163761407. The cubic root of 328643106 is about 690.0938792660.

Adding to 328643106 its reverse (601346823), we get a palindrome (929989929).

The spelling of 328643106 in words is "three hundred twenty-eight million, six hundred forty-three thousand, one hundred six".