42738258 has 32 divisors (see below), whose sum is σ = 90417600. Its totient is φ = 13430016.

The previous prime is 42738253. The next prime is 42738271. The reversal of 42738258 is 85283724.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42738253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25758 + ... + 27366.

It is an arithmetic number, because the mean of its divisors is an integer number (2825550).

Almost surely, 2^42738258 is an apocalyptic number.

42738258 is an abundant number, since it is smaller than the sum of its proper divisors (47679342).

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

42738258 is a wasteful number, since it uses less digits than its factorization.

42738258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its digits is 107520, while the sum is 39.

The square root of 42738258 is about 6537.4504204621. The cubic root of 42738258 is about 349.6275166548.

The spelling of 42738258 in words is "forty-two million, seven hundred thirty-eight thousand, two hundred fifty-eight".