44919221 has 8 divisors (see below), whose sum is σ = 46220160. Its totient is φ = 43622928.

The previous prime is 44919209. The next prime is 44919223. The reversal of 44919221 is 12291944.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44919221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44919223) 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, 30320 + ... + 31766.

It is an arithmetic number, because the mean of its divisors is an integer number (5777520).

Almost surely, 2^44919221 is an apocalyptic number.

It is an amenable number.

44919221 is a deficient number, since it is larger than the sum of its proper divisors (1300939).

44919221 is a wasteful number, since it uses less digits than its factorization.

44919221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its digits is 5184, while the sum is 32.

The square root of 44919221 is about 6702.1803168820. The cubic root of 44919221 is about 355.4763716498.

The spelling of 44919221 in words is "forty-four million, nine hundred nineteen thousand, two hundred twenty-one".