4013005 has 8 divisors (see below), whose sum is σ = 4828824. Its totient is φ = 3201600.

The previous prime is 4012999. The next prime is 4013021. The reversal of 4013005 is 5003104.

It can be written as a sum of positive squares in 4 ways, for example, as 84681 + 3928324 = 291^2 + 1982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4013005 - 2³ = 4012997 is a prime.

It is a super-2 number, since 2×4013005² = 32208418260050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (603603).

Almost surely, 2^4013005 is an apocalyptic number.

It is an amenable number.

4013005 is a deficient number, since it is larger than the sum of its proper divisors (815819).

4013005 is a wasteful number, since it uses less digits than its factorization.

4013005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 4013005 is about 2003.2486116306. The cubic root of 4013005 is about 158.9119536794.

Adding to 4013005 its reverse (5003104), we get a palindrome (9016109).

Subtracting 4013005 from its reverse (5003104), we obtain a palindrome (990099).

The spelling of 4013005 in words is "four million, thirteen thousand, five".