4040013 has 8 divisors (see below), whose sum is σ = 5560576. Its totient is φ = 2606400.

The previous prime is 4040011. The next prime is 4040021. The reversal of 4040013 is 3100404.

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

It is not a de Polignac number, because 4040013 - 2¹ = 4040011 is a prime.

It is a super-3 number, since 3×4040013³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21628 + ... + 21813.

It is an arithmetic number, because the mean of its divisors is an integer number (695072).

Almost surely, 2^4040013 is an apocalyptic number.

It is an amenable number.

4040013 is a deficient number, since it is larger than the sum of its proper divisors (1520563).

4040013 is a wasteful number, since it uses less digits than its factorization.

4040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43475.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4040013 is about 2009.9783580924. The cubic root of 4040013 is about 159.2676556671.

Adding to 4040013 its reverse (3100404), we get a palindrome (7140417).

The spelling of 4040013 in words is "four million, forty thousand, thirteen".