42243719 has 8 divisors (see below), whose sum is σ = 48408960. Its totient is φ = 36111096.

The previous prime is 42243697. The next prime is 42243727. The reversal of 42243719 is 91734224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42243719 - 2¹² = 42239623 is a prime.

It is a super-2 number, since 2×42243719² = 3569063589901922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5309 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (6051120).

Almost surely, 2^42243719 is an apocalyptic number.

42243719 is a deficient number, since it is larger than the sum of its proper divisors (6165241).

42243719 is a wasteful number, since it uses less digits than its factorization.

42243719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16309.

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

The square root of 42243719 is about 6499.5168281958. The cubic root of 42243719 is about 348.2737282433.

The spelling of 42243719 in words is "forty-two million, two hundred forty-three thousand, seven hundred nineteen".