4212442391 has 2 divisors, whose sum is σ = 4212442392. Its totient is φ = 4212442390.

The previous prime is 4212442337. The next prime is 4212442417. The reversal of 4212442391 is 1932442124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4212442391 - 2⁶ = 4212442327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4212442331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106221195 + 2106221196.

It is an arithmetic number, because the mean of its divisors is an integer number (2106221196).

Almost surely, 2^4212442391 is an apocalyptic number.

4212442391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4212442391 is an equidigital number, since it uses as much as digits as its factorization.

4212442391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 4212442391 is about 64903.3311240648. The cubic root of 4212442391 is about 1615.0203221219.

The spelling of 4212442391 in words is "four billion, two hundred twelve million, four hundred forty-two thousand, three hundred ninety-one".