42686265 has 32 divisors (see below), whose sum is σ = 69984000. Its totient is φ = 22211840.

The previous prime is 42686263. The next prime is 42686297. The reversal of 42686265 is 56268624.

It is not a de Polignac number, because 42686265 - 2¹ = 42686263 is a prime.

It is a super-3 number, since 3×42686265³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42686261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158551 + ... + 158819.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 2^42686265 is an apocalyptic number.

It is an amenable number.

42686265 is a deficient number, since it is larger than the sum of its proper divisors (27297735).

42686265 is a wasteful number, since it uses less digits than its factorization.

42686265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 138240, while the sum is 39.

The square root of 42686265 is about 6533.4726600790. The cubic root of 42686265 is about 349.4856799583.

The spelling of 42686265 in words is "forty-two million, six hundred eighty-six thousand, two hundred sixty-five".