3649449 has 8 divisors (see below), whose sum is σ = 4911840. Its totient is φ = 2410016.

The previous prime is 3649417. The next prime is 3649469. The reversal of 3649449 is 9449463.

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 3649449 - 2⁵ = 3649417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3649469) 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, 5364 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (613980).

Almost surely, 2^3649449 is an apocalyptic number.

It is an amenable number.

3649449 is a deficient number, since it is larger than the sum of its proper divisors (1262391).

3649449 is a wasteful number, since it uses less digits than its factorization.

3649449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479.

The product of its digits is 93312, while the sum is 39.

The square root of 3649449 is about 1910.3531087210. The cubic root of 3649449 is about 153.9604244176.

The spelling of 3649449 in words is "three million, six hundred forty-nine thousand, four hundred forty-nine".