42586905 has 16 divisors (see below), whose sum is σ = 69801984. Its totient is φ = 22158720.

The previous prime is 42586903. The next prime is 42586909. The reversal of 42586905 is 50968524.

It is not a de Polignac number, because 42586905 - 2¹ = 42586903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42586903) 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, 34009 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (4362624).

Almost surely, 2^42586905 is an apocalyptic number.

It is an amenable number.

42586905 is a deficient number, since it is larger than the sum of its proper divisors (27215079).

42586905 is a wasteful number, since it uses less digits than its factorization.

42586905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69296.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 42586905 is about 6525.8643105722. The cubic root of 42586905 is about 349.2143055878.

The spelling of 42586905 in words is "forty-two million, five hundred eighty-six thousand, nine hundred five".