40565836 has 36 divisors (see below), whose sum is σ = 78194200. Its totient is φ = 18361728.

The previous prime is 40565831. The next prime is 40565849. The reversal of 40565836 is 63856504.

It is a junction number, because it is equal to n+sod(n) for n = 40565795 and 40565804.

It is not an unprimeable number, because it can be changed into a prime (40565831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39700 + ... + 40708.

Almost surely, 2^40565836 is an apocalyptic number.

40565836 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40565836 is a deficient number, since it is larger than the sum of its proper divisors (37628364).

40565836 is a wasteful number, since it uses less digits than its factorization.

40565836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 40565836 is about 6369.1314949528. The cubic root of 40565836 is about 343.6002545124.

The spelling of 40565836 in words is "forty million, five hundred sixty-five thousand, eight hundred thirty-six".