4001913 has 32 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 2431296.

The previous prime is 4001891. The next prime is 4001939. The reversal of 4001913 is 3191004.

4001913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4001913 - 2⁶ = 4001849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14743 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

Almost surely, 2^4001913 is an apocalyptic number.

It is an amenable number.

4001913 is a deficient number, since it is larger than the sum of its proper divisors (2478087).

4001913 is a wasteful number, since it uses less digits than its factorization.

4001913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 4001913 is about 2000.4781928329. The cubic root of 4001913 is about 158.7654069822.

Adding to 4001913 its reverse (3191004), we get a palindrome (7192917).

The spelling of 4001913 in words is "four million, one thousand, nine hundred thirteen".