3640328 has 16 divisors (see below), whose sum is σ = 6881280. Its totient is φ = 1805328.

The previous prime is 3640327. The next prime is 3640331. The reversal of 3640328 is 8230463.

It is a junction number, because it is equal to n+sod(n) for n = 3640297 and 3640306.

It is not an unprimeable number, because it can be changed into a prime (3640327) 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, 776 + ... + 2807.

It is an arithmetic number, because the mean of its divisors is an integer number (430080).

Almost surely, 2^3640328 is an apocalyptic number.

It is an amenable number.

3640328 is a deficient number, since it is larger than the sum of its proper divisors (3240952).

3640328 is a wasteful number, since it uses less digits than its factorization.

3640328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3640328 is about 1907.9643602541. The cubic root of 3640328 is about 153.8320539386.

The spelling of 3640328 in words is "three million, six hundred forty thousand, three hundred twenty-eight".