42086558 has 16 divisors (see below), whose sum is σ = 67709520. Its totient is φ = 19558656.

The previous prime is 42086497. The next prime is 42086563. The reversal of 42086558 is 85568024.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8435 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (4231845).

Almost surely, 2^42086558 is an apocalyptic number.

42086558 is a deficient number, since it is larger than the sum of its proper divisors (25622962).

42086558 is a wasteful number, since it uses less digits than its factorization.

42086558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20971.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 42086558 is about 6487.4153559025. The cubic root of 42086558 is about 347.8412926292.

The spelling of 42086558 in words is "forty-two million, eighty-six thousand, five hundred fifty-eight".