42534419 has 2 divisors, whose sum is σ = 42534420. Its totient is φ = 42534418.

The previous prime is 42534413. The next prime is 42534451. The reversal of 42534419 is 91443524.

It is an a-pointer prime, because the next prime (42534451) can be obtained adding 42534419 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42534419 - 2¹⁶ = 42468883 is a prime.

It is a super-2 number, since 2×42534419² = 3618353599335122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42534413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267209 + 21267210.

It is an arithmetic number, because the mean of its divisors is an integer number (21267210).

Almost surely, 2^42534419 is an apocalyptic number.

42534419 is a deficient number, since it is larger than the sum of its proper divisors (1).

42534419 is an equidigital number, since it uses as much as digits as its factorization.

42534419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 42534419 is about 6521.8416877443. The cubic root of 42534419 is about 349.0707841856.

The spelling of 42534419 in words is "forty-two million, five hundred thirty-four thousand, four hundred nineteen".