3640732 has 12 divisors (see below), whose sum is σ = 6388200. Its totient is φ = 1815536.

The previous prime is 3640717. The next prime is 3640753. The reversal of 3640732 is 2370463.

It is a junction number, because it is equal to n+sod(n) for n = 3640697 and 3640706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (532350).

Almost surely, 2^3640732 is an apocalyptic number.

It is an amenable number.

3640732 is a deficient number, since it is larger than the sum of its proper divisors (2747468).

3640732 is a wasteful number, since it uses less digits than its factorization.

3640732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 3640732 is about 1908.0702293155. The cubic root of 3640732 is about 153.8377444378.

The spelling of 3640732 in words is "three million, six hundred forty thousand, seven hundred thirty-two".