40565636 has 12 divisors (see below), whose sum is σ = 71416128. Its totient is φ = 20161032.

The previous prime is 40565633. The next prime is 40565659. The reversal of 40565636 is 63656504.

It is a junction number, because it is equal to n+sod(n) for n = 40565596 and 40565605.

It is not an unprimeable number, because it can be changed into a prime (40565633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29696 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (5951344).

Almost surely, 2^40565636 is an apocalyptic number.

It is an amenable number.

40565636 is a deficient number, since it is larger than the sum of its proper divisors (30850492).

40565636 is a wasteful number, since it uses less digits than its factorization.

40565636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60898 (or 60896 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 40565636 is about 6369.1157942057. The cubic root of 40565636 is about 343.5996898323.

The spelling of 40565636 in words is "forty million, five hundred sixty-five thousand, six hundred thirty-six".