4009328 has 10 divisors (see below), whose sum is σ = 7768104. Its totient is φ = 2004656.

The previous prime is 4009321. The next prime is 4009333. The reversal of 4009328 is 8239004.

4009328 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4009328² = 32149422023168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4009297 and 4009306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125276 + ... + 125307.

Almost surely, 2^4009328 is an apocalyptic number.

It is an amenable number.

4009328 is a deficient number, since it is larger than the sum of its proper divisors (3758776).

4009328 is a wasteful number, since it uses less digits than its factorization.

4009328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250591 (or 250585 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4009328 is about 2002.3306420269. The cubic root of 4009328 is about 158.8634033778.

The spelling of 4009328 in words is "four million, nine thousand, three hundred twenty-eight".