42317019 has 8 divisors (see below), whose sum is σ = 62691920. Its totient is φ = 28211328.

The previous prime is 42317017. The next prime is 42317027. The reversal of 42317019 is 91071324.

It is not a de Polignac number, because 42317019 - 2¹ = 42317017 is a prime.

It is a super-2 number, since 2×42317019² = 3581460194092722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1567297 = 42317019 / (4 + 2 + 3 + 1 + 7 + 0 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42316983 and 42317001.

It is not an unprimeable number, because it can be changed into a prime (42317017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783622 + ... + 783675.

It is an arithmetic number, because the mean of its divisors is an integer number (7836490).

Almost surely, 2^42317019 is an apocalyptic number.

42317019 is a deficient number, since it is larger than the sum of its proper divisors (20374901).

42317019 is a wasteful number, since it uses less digits than its factorization.

42317019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567306 (or 1567300 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 42317019 is about 6505.1532649124. The cubic root of 42317019 is about 348.4750497944.

The spelling of 42317019 in words is "forty-two million, three hundred seventeen thousand, nineteen".