42344071 has 12 divisors (see below), whose sum is σ = 53193616. Its totient is φ = 32994720.

The previous prime is 42344069. The next prime is 42344077. The reversal of 42344071 is 17044324.

42344071 = T₁₀₁₀ + T₁₀₁₁ + ... + T₁₀₈₆.

It is not a de Polignac number, because 42344071 - 2¹ = 42344069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42344077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24150 + ... + 25843.

Almost surely, 2^42344071 is an apocalyptic number.

42344071 is a deficient number, since it is larger than the sum of its proper divisors (10849545).

42344071 is a wasteful number, since it uses less digits than its factorization.

42344071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50022 (or 50011 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42344071 is about 6507.2322073213. The cubic root of 42344071 is about 348.5492905230.

Adding to 42344071 its reverse (17044324), we get a palindrome (59388395).

The spelling of 42344071 in words is "forty-two million, three hundred forty-four thousand, seventy-one".