44040644 has 12 divisors (see below), whose sum is σ = 77545104. Its totient is φ = 21884904.

The previous prime is 44040631. The next prime is 44040649. The reversal of 44040644 is 44604044.

It is not an unprimeable number, because it can be changed into a prime (44040649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33122 + ... + 34425.

It is an arithmetic number, because the mean of its divisors is an integer number (6462092).

Almost surely, 2^44040644 is an apocalyptic number.

It is an amenable number.

44040644 is a deficient number, since it is larger than the sum of its proper divisors (33504460).

44040644 is a wasteful number, since it uses less digits than its factorization.

44040644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67714 (or 67712 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 44040644 is about 6636.3125303138. The cubic root of 44040644 is about 353.1435027139.

Adding to 44040644 its reverse (44604044), we get a palindrome (88644688).

The spelling of 44040644 in words is "forty-four million, forty thousand, six hundred forty-four".