446444644 has 12 divisors (see below), whose sum is σ = 789014268. Its totient is φ = 221012000.

The previous prime is 446444641. The next prime is 446444659.

446444644 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 380640100 + 65804544 = 19510^2 + 8112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 446444597 and 446444606.

It is not an unprimeable number, because it can be changed into a prime (446444641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 552127 + ... + 552934.

It is an arithmetic number, because the mean of its divisors is an integer number (65751189).

Almost surely, 2^446444644 is an apocalyptic number.

It is an amenable number.

446444644 is a deficient number, since it is larger than the sum of its proper divisors (342569624).

446444644 is a wasteful number, since it uses less digits than its factorization.

446444644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105166 (or 1105164 counting only the distinct ones).

The product of its digits is 589824, while the sum is 40.

The square root of 446444644 is about 21129.2367112492. The cubic root of 446444644 is about 764.2859436956.

The spelling of 446444644 in words is "four hundred forty-six million, four hundred forty-four thousand, six hundred forty-four".