4405345 has 12 divisors (see below), whose sum is σ = 6149844. Its totient is φ = 3020640.

The previous prime is 4405343. The next prime is 4405367. The reversal of 4405345 is 5435044.

It can be written as a sum of positive squares in 2 ways, for example, as 3389281 + 1016064 = 1841^2 + 1008^2 .

It is not a de Polignac number, because 4405345 - 2¹ = 4405343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4405343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8746 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (512487).

Almost surely, 2^4405345 is an apocalyptic number.

It is an amenable number.

4405345 is a deficient number, since it is larger than the sum of its proper divisors (1744499).

4405345 is a wasteful number, since it uses less digits than its factorization.

4405345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000 (or 17993 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 4405345 is about 2098.8913740354. The cubic root of 4405345 is about 163.9305798794.

The spelling of 4405345 in words is "four million, four hundred five thousand, three hundred forty-five".