44641521 has 6 divisors (see below), whose sum is σ = 64482210. Its totient is φ = 29761008.

The previous prime is 44641501. The next prime is 44641543. The reversal of 44641521 is 12514644.

44641521 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., 36433296 + 8208225 = 6036^2 + 2865^2 .

It is a de Polignac number, because none of the positive numbers 2^k-44641521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44641501) 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, 2480076 + ... + 2480093.

It is an arithmetic number, because the mean of its divisors is an integer number (10747035).

Almost surely, 2^44641521 is an apocalyptic number.

It is an amenable number.

44641521 is a deficient number, since it is larger than the sum of its proper divisors (19840689).

44641521 is a wasteful number, since it uses less digits than its factorization.

44641521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960175 (or 4960172 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 44641521 is about 6681.4310592866. The cubic root of 44641521 is about 354.7423138235.

The spelling of 44641521 in words is "forty-four million, six hundred forty-one thousand, five hundred twenty-one".