4244312213 has 4 divisors (see below), whose sum is σ = 4247606220. Its totient is φ = 4241018208.

The previous prime is 4244312201. The next prime is 4244312263. The reversal of 4244312213 is 3122134424.

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 3902875729 + 341436484 = 62473^2 + 18478^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244312213 - 2⁸ = 4244311957 is a prime.

It is a super-2 number, since 2×4244312213² = 36028372322841914738, which contains 22 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 (4244312263) 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, 1645070 + ... + 1647647.

It is an arithmetic number, because the mean of its divisors is an integer number (1061901555).

Almost surely, 2^4244312213 is an apocalyptic number.

It is an amenable number.

4244312213 is a deficient number, since it is larger than the sum of its proper divisors (3294007).

4244312213 is a wasteful number, since it uses less digits than its factorization.

4244312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294006.

The product of its digits is 4608, while the sum is 26.

The square root of 4244312213 is about 65148.3861120136. The cubic root of 4244312213 is about 1619.0829811109.

Adding to 4244312213 its reverse (3122134424), we get a palindrome (7366446637).

The spelling of 4244312213 in words is "four billion, two hundred forty-four million, three hundred twelve thousand, two hundred thirteen".