42586738 has 8 divisors (see below), whose sum is σ = 63908460. Its totient is φ = 21283920.

The previous prime is 42586729. The next prime is 42586757. The reversal of 42586738 is 83768524.

It can be written as a sum of positive squares in 2 ways, for example, as 41951529 + 635209 = 6477^2 + 797^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42586694 and 42586703.

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, 4548 + ... + 10288.

Almost surely, 2^42586738 is an apocalyptic number.

42586738 is a deficient number, since it is larger than the sum of its proper divisors (21321722).

42586738 is a wasteful number, since it uses less digits than its factorization.

42586738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452.

The product of its digits is 322560, while the sum is 43.

The square root of 42586738 is about 6525.8515153197. The cubic root of 42586738 is about 349.2138491184.

The spelling of 42586738 in words is "forty-two million, five hundred eighty-six thousand, seven hundred thirty-eight".