4000328 has 8 divisors (see below), whose sum is σ = 7500630. Its totient is φ = 2000160.

The previous prime is 4000309. The next prime is 4000343. The reversal of 4000328 is 8230004.

It can be written as a sum of positive squares in only one way, i.e., 2696164 + 1304164 = 1642^2 + 1142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

4000328 is a modest number, since divided by 328 gives 40 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250013 + ... + 250028.

Almost surely, 2^4000328 is an apocalyptic number.

It is an amenable number.

4000328 is a deficient number, since it is larger than the sum of its proper divisors (3500302).

4000328 is a wasteful number, since it uses less digits than its factorization.

4000328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500047 (or 500043 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4000328 is about 2000.0819983191. The cubic root of 4000328 is about 158.7444439744.

The spelling of 4000328 in words is "four million, three hundred twenty-eight", and thus it is an aban number.