44521636 has 24 divisors (see below), whose sum is σ = 83412000. Its totient is φ = 20729664.

The previous prime is 44521597. The next prime is 44521639. The reversal of 44521636 is 63612544.

It is a junction number, because it is equal to n+sod(n) for n = 44521598 and 44521607.

It is not an unprimeable number, because it can be changed into a prime (44521639) 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, 481 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (3475500).

Almost surely, 2^44521636 is an apocalyptic number.

It is an amenable number.

44521636 is a deficient number, since it is larger than the sum of its proper divisors (38890364).

44521636 is a wasteful number, since it uses less digits than its factorization.

44521636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011 (or 10009 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 44521636 is about 6672.4535217564. The cubic root of 44521636 is about 354.4244751223.

The spelling of 44521636 in words is "forty-four million, five hundred twenty-one thousand, six hundred thirty-six".