4468448644 has 24 divisors (see below), whose sum is σ = 8824838400. Its totient is φ = 1961074080.

The previous prime is 4468448641. The next prime is 4468448653.

4468448644 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4468448591 and 4468448600.

It is not an unprimeable number, because it can be changed into a prime (4468448641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749684 + ... + 1752235.

It is an arithmetic number, because the mean of its divisors is an integer number (367701600).

Almost surely, 2^4468448644 is an apocalyptic number.

4468448644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4468448644 is a deficient number, since it is larger than the sum of its proper divisors (4356389756).

4468448644 is a wasteful number, since it uses less digits than its factorization.

4468448644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501963 (or 3501961 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 52.

The square root of 4468448644 is about 66846.4557325218. The cubic root of 4468448644 is about 1647.0960422755.

The spelling of 4468448644 in words is "four billion, four hundred sixty-eight million, four hundred forty-eight thousand, six hundred forty-four".