44471521 has 8 divisors (see below), whose sum is σ = 46007360. Its totient is φ = 42953328.

The previous prime is 44471491. The next prime is 44471551. The reversal of 44471521 is 12517444.

It is an interprime number because it is at equal distance from previous prime (44471491) and next prime (44471551).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44471521 - 2⁷ = 44471393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44471521.

It is not an unprimeable number, because it can be changed into a prime (44471551) 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, 820 + ... + 9466.

It is an arithmetic number, because the mean of its divisors is an integer number (5750920).

Almost surely, 2^44471521 is an apocalyptic number.

It is an amenable number.

44471521 is a deficient number, since it is larger than the sum of its proper divisors (1535839).

44471521 is a wasteful number, since it uses less digits than its factorization.

44471521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823.

The product of its digits is 4480, while the sum is 28.

The square root of 44471521 is about 6668.6970991341. The cubic root of 44471521 is about 354.2914412926.

Adding to 44471521 its reverse (12517444), we get a palindrome (56988965).

The spelling of 44471521 in words is "forty-four million, four hundred seventy-one thousand, five hundred twenty-one".