4442405 has 24 divisors (see below), whose sum is σ = 6078240. Its totient is φ = 3090240.

The previous prime is 4442401. The next prime is 4442413. The reversal of 4442405 is 5042444.

It is not a de Polignac number, because 4442405 - 2² = 4442401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75266 + ... + 75324.

It is an arithmetic number, because the mean of its divisors is an integer number (253260).

Almost surely, 2^4442405 is an apocalyptic number.

It is an amenable number.

4442405 is a deficient number, since it is larger than the sum of its proper divisors (1635835).

4442405 is a wasteful number, since it uses less digits than its factorization.

4442405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4442405 is about 2107.7013545567. The cubic root of 4442405 is about 164.3889859285.

Adding to 4442405 its reverse (5042444), we get a palindrome (9484849).

The spelling of 4442405 in words is "four million, four hundred forty-two thousand, four hundred five".