3660640393 has 8 divisors (see below), whose sum is σ = 3679200000. Its totient is φ = 3642108288.

The previous prime is 3660640387. The next prime is 3660640421. The reversal of 3660640393 is 3930460663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3660640393 - 2²⁵ = 3627085961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660640303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292380 + ... + 304642.

It is an arithmetic number, because the mean of its divisors is an integer number (459900000).

Almost surely, 2^3660640393 is an apocalyptic number.

It is an amenable number.

3660640393 is a deficient number, since it is larger than the sum of its proper divisors (18559607).

3660640393 is a wasteful number, since it uses less digits than its factorization.

3660640393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751.

The product of its (nonzero) digits is 209952, while the sum is 40.

The square root of 3660640393 is about 60503.2263024047. The cubic root of 3660640393 is about 1541.1764206234.

The spelling of 3660640393 in words is "three billion, six hundred sixty million, six hundred forty thousand, three hundred ninety-three".