4444428648 has 32 divisors (see below), whose sum is σ = 12121169760. Its totient is φ = 1346796480.

The previous prime is 4444428607. The next prime is 4444428697. The reversal of 4444428648 is 8468244444.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4444428597 and 4444428606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417215 + ... + 8417742.

It is an arithmetic number, because the mean of its divisors is an integer number (378786555).

Almost surely, 2^4444428648 is an apocalyptic number.

It is an amenable number.

4444428648 is an abundant number, since it is smaller than the sum of its proper divisors (7676741112).

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

4444428648 is a wasteful number, since it uses less digits than its factorization.

4444428648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834977 (or 16834973 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 48.

The square root of 4444428648 is about 66666.5481932281. The cubic root of 4444428648 is about 1644.1394350156.

The spelling of 4444428648 in words is "four billion, four hundred forty-four million, four hundred twenty-eight thousand, six hundred forty-eight".