8442005 has 16 divisors (see below), whose sum is σ = 11902464. Its totient is φ = 5666880.

The previous prime is 8441969. The next prime is 8442011. The reversal of 8442005 is 5002448.

It is not a de Polignac number, because 8442005 - 2⁸ = 8441749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5189 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (743904).

Almost surely, 2^8442005 is an apocalyptic number.

It is an amenable number.

8442005 is a deficient number, since it is larger than the sum of its proper divisors (3460459).

8442005 is a wasteful number, since it uses less digits than its factorization.

8442005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 8442005 is about 2905.5128635062. The cubic root of 8442005 is about 203.6175472465.

The spelling of 8442005 in words is "eight million, four hundred forty-two thousand, five".