4442345 has 4 divisors (see below), whose sum is σ = 5330820. Its totient is φ = 3553872.

The previous prime is 4442327. The next prime is 4442357. The reversal of 4442345 is 5432444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 458329 + 3984016 = 677^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442345 - 2¹⁸ = 4180201 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444230 + ... + 444239.

It is an arithmetic number, because the mean of its divisors is an integer number (1332705).

Almost surely, 2^4442345 is an apocalyptic number.

It is an amenable number.

4442345 is a deficient number, since it is larger than the sum of its proper divisors (888475).

4442345 is an equidigital number, since it uses as much as digits as its factorization.

4442345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888474.

The product of its digits is 7680, while the sum is 26.

The square root of 4442345 is about 2107.6871209931. The cubic root of 4442345 is about 164.3882458351.

Adding to 4442345 its reverse (5432444), we get a palindrome (9874789).

Subtracting 4442345 from its reverse (5432444), we obtain a palindrome (990099).

The spelling of 4442345 in words is "four million, four hundred forty-two thousand, three hundred forty-five".