4446644 has 6 divisors (see below), whose sum is σ = 7781634. Its totient is φ = 2223320.

The previous prime is 4446643. The next prime is 4446661. The reversal of 4446644 is 4466444.

It can be written as a sum of positive squares in only one way, i.e., 3422500 + 1024144 = 1850^2 + 1012^2 .

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 4446644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4446641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555827 + ... + 555834.

It is an arithmetic number, because the mean of its divisors is an integer number (1296939).

Almost surely, 2^4446644 is an apocalyptic number.

It is an amenable number.

4446644 is a deficient number, since it is larger than the sum of its proper divisors (3334990).

4446644 is a wasteful number, since it uses less digits than its factorization.

4446644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111665 (or 1111663 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 4446644 is about 2108.7067126559. The cubic root of 4446644 is about 164.4412566679.

The spelling of 4446644 in words is "four million, four hundred forty-six thousand, six hundred forty-four".