44657749 has 6 divisors (see below), whose sum is σ = 45431030. Its totient is φ = 43897416.

The previous prime is 44657741. The next prime is 44657777. The reversal of 44657749 is 94775644.

44657749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 2537649 = 6490^2 + 1593^2 .

It is not a de Polignac number, because 44657749 - 2³ = 44657741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44657699 and 44657708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44657741) 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 5 ways as a sum of consecutive naturals, for example, 2934 + ... + 9895.

Almost surely, 2^44657749 is an apocalyptic number.

It is an amenable number.

44657749 is a deficient number, since it is larger than the sum of its proper divisors (773281).

44657749 is an equidigital number, since it uses as much as digits as its factorization.

44657749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947 (or 12888 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 44657749 is about 6682.6453594366. The cubic root of 44657749 is about 354.7852936975.

The spelling of 44657749 in words is "forty-four million, six hundred fifty-seven thousand, seven hundred forty-nine".