19442327 has 2 divisors, whose sum is σ = 19442328. Its totient is φ = 19442326.

The previous prime is 19442299. The next prime is 19442341. The reversal of 19442327 is 72324491.

It is a strong prime.

It is an emirp because it is prime and its reverse (72324491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19442327 - 2¹² = 19438231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19442293 and 19442302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19442387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9721163 + 9721164.

It is an arithmetic number, because the mean of its divisors is an integer number (9721164).

Almost surely, 2^19442327 is an apocalyptic number.

19442327 is a deficient number, since it is larger than the sum of its proper divisors (1).

19442327 is an equidigital number, since it uses as much as digits as its factorization.

19442327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 19442327 is about 4409.3454162721. The cubic root of 19442327 is about 268.8950129959.

The spelling of 19442327 in words is "nineteen million, four hundred forty-two thousand, three hundred twenty-seven".