42491058 has 16 divisors (see below), whose sum is σ = 89981280. Its totient is φ = 13330496.

The previous prime is 42491027. The next prime is 42491083. The reversal of 42491058 is 85019424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208188 + ... + 208391.

It is an arithmetic number, because the mean of its divisors is an integer number (5623830).

Almost surely, 2^42491058 is an apocalyptic number.

42491058 is an abundant number, since it is smaller than the sum of its proper divisors (47490222).

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

42491058 is a wasteful number, since it uses less digits than its factorization.

42491058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416601.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 42491058 is about 6518.5165490317. The cubic root of 42491058 is about 348.9521257364.

The spelling of 42491058 in words is "forty-two million, four hundred ninety-one thousand, fifty-eight".