4445566 has 4 divisors (see below), whose sum is σ = 6668352. Its totient is φ = 2222782.

The previous prime is 4445561. The next prime is 4445569. The reversal of 4445566 is 6655444.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111390 + ... + 1111393.

It is an arithmetic number, because the mean of its divisors is an integer number (1667088).

Almost surely, 2^4445566 is an apocalyptic number.

4445566 is a deficient number, since it is larger than the sum of its proper divisors (2222786).

4445566 is a wasteful number, since it uses less digits than its factorization.

4445566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222785.

The product of its digits is 57600, while the sum is 34.

The square root of 4445566 is about 2108.4510902556. The cubic root of 4445566 is about 164.4279670948.

It can be divided in two parts, 44455 and 66, that added together give a square (44521 = 211²).

The spelling of 4445566 in words is "four million, four hundred forty-five thousand, five hundred sixty-six".