42190219 has 2 divisors, whose sum is σ = 42190220. Its totient is φ = 42190218.

The previous prime is 42190217. The next prime is 42190231. The reversal of 42190219 is 91209124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42190219 - 2¹ = 42190217 is a prime.

It is a super-2 number, since 2×42190219² = 3560029158535922, which contains 22 as substring.

Together with 42190217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42190217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21095109 + 21095110.

It is an arithmetic number, because the mean of its divisors is an integer number (21095110).

Almost surely, 2^42190219 is an apocalyptic number.

42190219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42190219 is an equidigital number, since it uses as much as digits as its factorization.

42190219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 42190219 is about 6495.3998337285. The cubic root of 42190219 is about 348.1266411633.

The spelling of 42190219 in words is "forty-two million, one hundred ninety thousand, two hundred nineteen".