42242019 has 4 divisors (see below), whose sum is σ = 56322696. Its totient is φ = 28161344.

The previous prime is 42242017. The next prime is 42242021. The reversal of 42242019 is 91024224.

42242019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42242017) and next prime (42242021).

It is a cyclic number.

It is not a de Polignac number, because 42242019 - 2¹ = 42242017 is a prime.

It is a super-2 number, since 2×42242019² = 3568776338392722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42242019.

It is not an unprimeable number, because it can be changed into a prime (42242017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7040334 + ... + 7040339.

It is an arithmetic number, because the mean of its divisors is an integer number (14080674).

Almost surely, 2^42242019 is an apocalyptic number.

42242019 is a deficient number, since it is larger than the sum of its proper divisors (14080677).

42242019 is a wasteful number, since it uses less digits than its factorization.

42242019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14080676.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42242019 is about 6499.3860479279. The cubic root of 42242019 is about 348.2690563592.

The spelling of 42242019 in words is "forty-two million, two hundred forty-two thousand, nineteen".