42438558 has 16 divisors (see below), whose sum is σ = 85253760. Its totient is φ = 14083416.

The previous prime is 42438497. The next prime is 42438559. The reversal of 42438558 is 85583424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42438559) 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, 14218 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (5328360).

Almost surely, 2^42438558 is an apocalyptic number.

42438558 is an abundant number, since it is smaller than the sum of its proper divisors (42815202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42438558 is a wasteful number, since it uses less digits than its factorization.

42438558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31391.

The product of its digits is 153600, while the sum is 39.

The square root of 42438558 is about 6514.4883145186. The cubic root of 42438558 is about 348.8083500985.

The spelling of 42438558 in words is "forty-two million, four hundred thirty-eight thousand, five hundred fifty-eight".