4444219988 has 36 divisors (see below), whose sum is σ = 8755691028. Its totient is φ = 1961984640.

The previous prime is 4444219973. The next prime is 4444219991. The reversal of 4444219988 is 8899124444.

It can be written as a sum of positive squares in 2 ways, for example, as 1631190544 + 2813029444 = 40388^2 + 53038^2 .

It is a super-3 number, since 3×4444219988³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53273 + ... + 108288.

Almost surely, 2^4444219988 is an apocalyptic number.

It is an amenable number.

4444219988 is a deficient number, since it is larger than the sum of its proper divisors (4311471040).

4444219988 is a wasteful number, since it uses less digits than its factorization.

4444219988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161624 (or 161599 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 53.

The square root of 4444219988 is about 66664.9832220784. The cubic root of 4444219988 is about 1644.1137045614.

The spelling of 4444219988 in words is "four billion, four hundred forty-four million, two hundred nineteen thousand, nine hundred eighty-eight".