4408605 has 18 divisors (see below), whose sum is σ = 7666074. Its totient is φ = 2343744.

The previous prime is 4408601. The next prime is 4408619. The reversal of 4408605 is 5068044.

It can be written as a sum of positive squares in 3 ways, for example, as 617796 + 3790809 = 786^2 + 1947^2 .

It is not a de Polignac number, because 4408605 - 2² = 4408601 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4408601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13929 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (425893).

Almost surely, 2^4408605 is an apocalyptic number.

4408605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4408605 is a deficient number, since it is larger than the sum of its proper divisors (3257469).

4408605 is an equidigital number, since it uses as much as digits as its factorization.

4408605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4408605 is about 2099.6678308723. The cubic root of 4408605 is about 163.9710066731.

It can be divided in two parts, 440 and 8605, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 4408605 in words is "four million, four hundred eight thousand, six hundred five".