4445444 has 6 divisors (see below), whose sum is σ = 7779534. Its totient is φ = 2222720.

The previous prime is 4445443. The next prime is 4445447.

4445444 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 4251844 + 193600 = 2062^2 + 440^2 .

It is not an unprimeable number, because it can be changed into a prime (4445443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555677 + ... + 555684.

It is an arithmetic number, because the mean of its divisors is an integer number (1296589).

Almost surely, 2^4445444 is an apocalyptic number.

It is an amenable number.

4445444 is a deficient number, since it is larger than the sum of its proper divisors (3334090).

4445444 is a wasteful number, since it uses less digits than its factorization.

4445444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111365 (or 1111363 counting only the distinct ones).

The product of its digits is 20480, while the sum is 29.

The square root of 4445444 is about 2108.4221588667. The cubic root of 4445444 is about 164.4264629447.

The spelling of 4445444 in words is "four million, four hundred forty-five thousand, four hundred forty-four".