3649136 has 20 divisors (see below), whose sum is σ = 7128264. Its totient is φ = 1809600.

The previous prime is 3649133. The next prime is 3649147. The reversal of 3649136 is 6319463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649133) by changing a digit.

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, 1226 + ... + 2966.

Almost surely, 2^3649136 is an apocalyptic number.

It is an amenable number.

3649136 is a deficient number, since it is larger than the sum of its proper divisors (3479128).

3649136 is a wasteful number, since it uses less digits than its factorization.

3649136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1874 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 3649136 is about 1910.2711849368. The cubic root of 3649136 is about 153.9560227494.

The spelling of 3649136 in words is "three million, six hundred forty-nine thousand, one hundred thirty-six".