328668436 has 48 divisors (see below), whose sum is σ = 618444288. Its totient is φ = 152460000.

The previous prime is 328668401. The next prime is 328668437. The reversal of 328668436 is 634866823.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328668437) 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, 992791 + ... + 993121.

It is an arithmetic number, because the mean of its divisors is an integer number (12884256).

Almost surely, 2^328668436 is an apocalyptic number.

It is an amenable number.

328668436 is a deficient number, since it is larger than the sum of its proper divisors (289775852).

328668436 is a wasteful number, since it uses less digits than its factorization.

328668436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its digits is 995328, while the sum is 46.

The square root of 328668436 is about 18129.2149857626. The cubic root of 328668436 is about 690.1116083553. Note that the first 3 decimals are identical.

The spelling of 328668436 in words is "three hundred twenty-eight million, six hundred sixty-eight thousand, four hundred thirty-six".