3644005132 has 24 divisors (see below), whose sum is σ = 6402510800. Its totient is φ = 1814731776.

The previous prime is 3644005103. The next prime is 3644005139. The reversal of 3644005132 is 2315004463.

It is a self number, because there is not a number n which added to its sum of digits gives 3644005132.

It is not an unprimeable number, because it can be changed into a prime (3644005139) 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, 1404028 + ... + 1406620.

Almost surely, 2^3644005132 is an apocalyptic number.

It is an amenable number.

3644005132 is a deficient number, since it is larger than the sum of its proper divisors (2758505668).

3644005132 is a wasteful number, since it uses less digits than its factorization.

3644005132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3863 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 3644005132 is about 60365.5955988177. The cubic root of 3644005132 is about 1538.8383227787.

Adding to 3644005132 its reverse (2315004463), we get a palindrome (5959009595).

The spelling of 3644005132 in words is "three billion, six hundred forty-four million, five thousand, one hundred thirty-two".