42319071 has 8 divisors (see below), whose sum is σ = 62694960. Its totient is φ = 28212696.

The previous prime is 42319027. The next prime is 42319097. The reversal of 42319071 is 17091324.

It is not a de Polignac number, because 42319071 - 2⁷ = 42318943 is a prime.

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: 1567373 = 42319071 / (4 + 2 + 3 + 1 + 9 + 0 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312071) 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, 783660 + ... + 783713.

It is an arithmetic number, because the mean of its divisors is an integer number (7836870).

Almost surely, 2^42319071 is an apocalyptic number.

42319071 is a deficient number, since it is larger than the sum of its proper divisors (20375889).

42319071 is a wasteful number, since it uses less digits than its factorization.

42319071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567382 (or 1567376 counting only the distinct ones).

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

The square root of 42319071 is about 6505.3109841114. The cubic root of 42319071 is about 348.4806823528.

The spelling of 42319071 in words is "forty-two million, three hundred nineteen thousand, seventy-one".