42538258 has 16 divisors (see below), whose sum is σ = 73329984. Its totient is φ = 18128880.

The previous prime is 42538229. The next prime is 42538259. The reversal of 42538258 is 85283524.

It is not an unprimeable number, because it can be changed into a prime (42538259) 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, 5860 + ... + 10927.

It is an arithmetic number, because the mean of its divisors is an integer number (4583124).

Almost surely, 2^42538258 is an apocalyptic number.

42538258 is a deficient number, since it is larger than the sum of its proper divisors (30791726).

42538258 is a wasteful number, since it uses less digits than its factorization.

42538258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16977.

The product of its digits is 76800, while the sum is 37.

The square root of 42538258 is about 6522.1359998087. The cubic root of 42538258 is about 349.0812858174.

It can be divided in two parts, 425 and 38258, that added together give a palindrome (38683).

The spelling of 42538258 in words is "forty-two million, five hundred thirty-eight thousand, two hundred fifty-eight".