42586538 has 8 divisors (see below), whose sum is σ = 64123488. Its totient is φ = 21212044.

The previous prime is 42586499. The next prime is 42586541. The reversal of 42586538 is 83568524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42586538² = 3627226437650888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42586495 and 42586504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39956 + ... + 41007.

It is an arithmetic number, because the mean of its divisors is an integer number (8015436).

Almost surely, 2^42586538 is an apocalyptic number.

42586538 is a deficient number, since it is larger than the sum of its proper divisors (21536950).

42586538 is a wasteful number, since it uses less digits than its factorization.

42586538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81228.

The product of its digits is 230400, while the sum is 41.

The square root of 42586538 is about 6525.8361916309. The cubic root of 42586538 is about 349.2133024468.

The spelling of 42586538 in words is "forty-two million, five hundred eighty-six thousand, five hundred thirty-eight".