42565636 has 24 divisors (see below), whose sum is σ = 76700736. Its totient is φ = 20660640.

The previous prime is 42565619. The next prime is 42565639. The reversal of 42565636 is 63656524.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42565595 and 42565604.

It is not an unprimeable number, because it can be changed into a prime (42565639) 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, 17910 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (3195864).

Almost surely, 2^42565636 is an apocalyptic number.

It is an amenable number.

42565636 is a deficient number, since it is larger than the sum of its proper divisors (34135100).

42565636 is a wasteful number, since it uses less digits than its factorization.

42565636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2377 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 42565636 is about 6524.2345144852. The cubic root of 42565636 is about 349.1561603599.

The spelling of 42565636 in words is "forty-two million, five hundred sixty-five thousand, six hundred thirty-six".