3660320 has 24 divisors (see below), whose sum is σ = 8647884. Its totient is φ = 1464064.

The previous prime is 3660317. The next prime is 3660323. The reversal of 3660320 is 230663.

It is a happy number.

3660320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3660317) and next prime (3660323).

It can be written as a sum of positive squares in 2 ways, for example, as 3579664 + 80656 = 1892^2 + 284^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3660292 and 3660301.

It is not an unprimeable number, because it can be changed into a prime (3660323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11279 + ... + 11598.

Almost surely, 2^3660320 is an apocalyptic number.

It is an amenable number.

3660320 is an abundant number, since it is smaller than the sum of its proper divisors (4987564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3660320 is a wasteful number, since it uses less digits than its factorization.

3660320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22892 (or 22884 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3660320 is about 1913.1962784827. The cubic root of 3660320 is about 154.1131456128.

Adding to 3660320 its reverse (230663), we get a palindrome (3890983).

The spelling of 3660320 in words is "three million, six hundred sixty thousand, three hundred twenty".