4213238849 has 2 divisors, whose sum is σ = 4213238850. Its totient is φ = 4213238848.

The previous prime is 4213238797. The next prime is 4213238891. The reversal of 4213238849 is 9488323124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2758350400 + 1454888449 = 52520^2 + 38143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4213238849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4213238749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106619424 + 2106619425.

It is an arithmetic number, because the mean of its divisors is an integer number (2106619425).

Almost surely, 2^4213238849 is an apocalyptic number.

It is an amenable number.

4213238849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213238849 is an equidigital number, since it uses as much as digits as its factorization.

4213238849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 4213238849 is about 64909.4665592007. The cubic root of 4213238849 is about 1615.1221011436.

The spelling of 4213238849 in words is "four billion, two hundred thirteen million, two hundred thirty-eight thousand, eight hundred forty-nine".