44664521 has 8 divisors (see below), whose sum is σ = 50297088. Its totient is φ = 39294000.

The previous prime is 44664511. The next prime is 44664527. The reversal of 44664521 is 12546644.

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 44664521 - 2¹⁰ = 44663497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44664527) 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, 65150 + ... + 65831.

It is an arithmetic number, because the mean of its divisors is an integer number (6287136).

Almost surely, 2^44664521 is an apocalyptic number.

It is an amenable number.

44664521 is a deficient number, since it is larger than the sum of its proper divisors (5632567).

44664521 is a wasteful number, since it uses less digits than its factorization.

44664521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131023.

The product of its digits is 23040, while the sum is 32.

The square root of 44664521 is about 6683.1520258034. The cubic root of 44664521 is about 354.8032262671.

The spelling of 44664521 in words is "forty-four million, six hundred sixty-four thousand, five hundred twenty-one".