4018013 has 4 divisors (see below), whose sum is σ = 4040640. Its totient is φ = 3995388.

The previous prime is 4017997. The next prime is 4018039. The reversal of 4018013 is 3108104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4018013 - 2⁴ = 4017997 is a prime.

It is a super-2 number, since 2×4018013² = 32288856936338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4017982 and 4018000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11045 + ... + 11402.

It is an arithmetic number, because the mean of its divisors is an integer number (1010160).

Almost surely, 2^4018013 is an apocalyptic number.

It is an amenable number.

4018013 is a deficient number, since it is larger than the sum of its proper divisors (22627).

4018013 is a wasteful number, since it uses less digits than its factorization.

4018013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22626.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4018013 is about 2004.4981915682. The cubic root of 4018013 is about 158.9780305339.

Subtracting from 4018013 its reverse (3108104), we obtain a palindrome (909909).

The spelling of 4018013 in words is "four million, eighteen thousand, thirteen".