328445944 has 16 divisors (see below), whose sum is σ = 616570920. Its totient is φ = 164027040.

The previous prime is 328445941. The next prime is 328445947. The reversal of 328445944 is 449544823.

It is an interprime number because it is at equal distance from previous prime (328445941) and next prime (328445947).

It is a super-2 number, since 2×328445944² = 215753476260102272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 328445944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328445941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17242 + ... + 30889.

Almost surely, 2^328445944 is an apocalyptic number.

It is an amenable number.

328445944 is a deficient number, since it is larger than the sum of its proper divisors (288124976).

328445944 is a wasteful number, since it uses less digits than its factorization.

328445944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48990 (or 48986 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 328445944 is about 18123.0776635758. The cubic root of 328445944 is about 689.9558495870.

The spelling of 328445944 in words is "three hundred twenty-eight million, four hundred forty-five thousand, nine hundred forty-four".