4020244213 has 4 divisors (see below), whose sum is σ = 4128899500. Its totient is φ = 3911588928.

The previous prime is 4020244199. The next prime is 4020244253. The reversal of 4020244213 is 3124420204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3447216369 + 573027844 = 58713^2 + 23938^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020244213 - 2⁹ = 4020243701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020244253) 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, 54327588 + ... + 54327661.

It is an arithmetic number, because the mean of its divisors is an integer number (1032224875).

Almost surely, 2^4020244213 is an apocalyptic number.

It is an amenable number.

4020244213 is a deficient number, since it is larger than the sum of its proper divisors (108655287).

4020244213 is a wasteful number, since it uses less digits than its factorization.

4020244213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108655286.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4020244213 is about 63405.3957719688. The cubic root of 4020244213 is about 1590.0745205899.

Adding to 4020244213 its reverse (3124420204), we get a palindrome (7144664417).

The spelling of 4020244213 in words is "four billion, twenty million, two hundred forty-four thousand, two hundred thirteen".