42265686 has 16 divisors (see below), whose sum is σ = 85690224. Its totient is φ = 13895424.

The previous prime is 42265681. The next prime is 42265687. The reversal of 42265686 is 68656224.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42265681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47811 + ... + 48686.

It is an arithmetic number, because the mean of its divisors is an integer number (5355639).

Almost surely, 2^42265686 is an apocalyptic number.

42265686 is an abundant number, since it is smaller than the sum of its proper divisors (43424538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42265686 is a wasteful number, since it uses less digits than its factorization.

42265686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96575.

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

The square root of 42265686 is about 6501.2065034115. The cubic root of 42265686 is about 348.3340859600.

The spelling of 42265686 in words is "forty-two million, two hundred sixty-five thousand, six hundred eighty-six".