44216231 has 2 divisors, whose sum is σ = 44216232. Its totient is φ = 44216230.

The previous prime is 44216219. The next prime is 44216239. The reversal of 44216231 is 13261244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44216231 is a prime.

It is a super-2 number, since 2×44216231² = 3910150167690722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44216197 and 44216206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44216239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22108115 + 22108116.

It is an arithmetic number, because the mean of its divisors is an integer number (22108116).

Almost surely, 2^44216231 is an apocalyptic number.

44216231 is a deficient number, since it is larger than the sum of its proper divisors (1).

44216231 is an equidigital number, since it uses as much as digits as its factorization.

44216231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 44216231 is about 6649.5286299105. The cubic root of 44216231 is about 353.6121999461.

Adding to 44216231 its reverse (13261244), we get a palindrome (57477475).

The spelling of 44216231 in words is "forty-four million, two hundred sixteen thousand, two hundred thirty-one".