4449889966 has 8 divisors (see below), whose sum is σ = 6675537384. Its totient is φ = 2224710840.

The previous prime is 4449889957. The next prime is 4449889967. The reversal of 4449889966 is 6699889444.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449889967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92265 + ... + 131956.

It is an arithmetic number, because the mean of its divisors is an integer number (834442173).

Almost surely, 2^4449889966 is an apocalyptic number.

4449889966 is a deficient number, since it is larger than the sum of its proper divisors (2225647418).

4449889966 is a wasteful number, since it uses less digits than its factorization.

4449889966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234146.

The product of its digits is 107495424, while the sum is 67.

The square root of 4449889966 is about 66707.4955758347. The cubic root of 4449889966 is about 1644.8125993779.

The spelling of 4449889966 in words is "four billion, four hundred forty-nine million, eight hundred eighty-nine thousand, nine hundred sixty-six".