44009649 has 20 divisors (see below), whose sum is σ = 68604096. Its totient is φ = 28062936.

The previous prime is 44009621. The next prime is 44009653. The reversal of 44009649 is 94690044.

44009649 is a `hidden beast` number, since 4 + 4 + 0 + 0 + 9 + 649 = 666.

44009649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44009649 - 2⁸ = 44009393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44009659) 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 19 ways as a sum of consecutive naturals, for example, 9949 + ... + 13674.

Almost surely, 2^44009649 is an apocalyptic number.

It is an amenable number.

44009649 is a deficient number, since it is larger than the sum of its proper divisors (24594447).

44009649 is a wasteful number, since it uses less digits than its factorization.

44009649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23658 (or 23649 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 44009649 is about 6633.9768615816. The cubic root of 44009649 is about 353.0606379579.

The spelling of 44009649 in words is "forty-four million, nine thousand, six hundred forty-nine".