3944505 has 16 divisors (see below), whose sum is σ = 6378624. Its totient is φ = 2081280.

The previous prime is 3944503. The next prime is 3944509. The reversal of 3944505 is 5054493.

It is not a de Polignac number, because 3944505 - 2¹ = 3944503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3944503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (398664).

Almost surely, 2^3944505 is an apocalyptic number.

It is an amenable number.

3944505 is a deficient number, since it is larger than the sum of its proper divisors (2434119).

3944505 is a wasteful number, since it uses less digits than its factorization.

With its successor (3944506) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2816).

3944505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3944505 is about 1986.0777930383. The cubic root of 3944505 is about 158.0025770022.

Adding to 3944505 its reverse (5054493), we get a palindrome (8998998).

It can be divided in two parts, 39 and 44505, that added together give a palindrome (44544).

The spelling of 3944505 in words is "three million, nine hundred forty-four thousand, five hundred five".