4444664444 has 36 divisors (see below), whose sum is σ = 8572230912. Its totient is φ = 2014943040.

The previous prime is 4444664443. The next prime is 4444664447.

4444664444 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4444664395 and 4444664404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444664443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173384 + ... + 197360.

Almost surely, 2^4444664444 is an apocalyptic number.

4444664444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4444664444 is a deficient number, since it is larger than the sum of its proper divisors (4127566468).

4444664444 is a wasteful number, since it uses less digits than its factorization.

4444664444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24386 (or 24373 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 44.

The square root of 4444664444 is about 66668.3166429152. The cubic root of 4444664444 is about 1644.1685107174.

The spelling of 4444664444 in words is "four billion, four hundred forty-four million, six hundred sixty-four thousand, four hundred forty-four".