42058239 has 4 divisors (see below), whose sum is σ = 56077656. Its totient is φ = 28038824.

The previous prime is 42058201. The next prime is 42058241. The reversal of 42058239 is 93285024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42058239 - 2¹¹ = 42056191 is a prime.

It is a super-2 number, since 2×42058239² = 3537790935562242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42058249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7009704 + ... + 7009709.

It is an arithmetic number, because the mean of its divisors is an integer number (14019414).

Almost surely, 2^42058239 is an apocalyptic number.

42058239 is a deficient number, since it is larger than the sum of its proper divisors (14019417).

42058239 is a wasteful number, since it uses less digits than its factorization.

42058239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019416.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 42058239 is about 6485.2323782575. The cubic root of 42058239 is about 347.7632572005.

Subtracting from 42058239 its sum of digits (33), we obtain a triangular number (42058206 = T₉₁₇₁).

The spelling of 42058239 in words is "forty-two million, fifty-eight thousand, two hundred thirty-nine".