44421666 has 32 divisors (see below), whose sum is σ = 91542528. Its totient is φ = 14362320.

The previous prime is 44421653. The next prime is 44421691. The reversal of 44421666 is 66612444.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42571 + ... + 43601.

It is an arithmetic number, because the mean of its divisors is an integer number (2860704).

Almost surely, 2^44421666 is an apocalyptic number.

44421666 is an abundant number, since it is smaller than the sum of its proper divisors (47120862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44421666 is a wasteful number, since it uses less digits than its factorization.

44421666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its digits is 27648, while the sum is 33.

The square root of 44421666 is about 6664.9580643842. The cubic root of 44421666 is about 354.1589984468.

The spelling of 44421666 in words is "forty-four million, four hundred twenty-one thousand, six hundred sixty-six".