40568836 has 48 divisors (see below), whose sum is σ = 89413632. Its totient is φ = 15645600.

The previous prime is 40568831. The next prime is 40568861. The reversal of 40568836 is 63886504.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (40568831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32341 + ... + 33571.

It is an arithmetic number, because the mean of its divisors is an integer number (1862784).

Almost surely, 2^40568836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40568836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44706816).

40568836 is an abundant number, since it is smaller than the sum of its proper divisors (48844796).

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

40568836 is a wasteful number, since it uses less digits than its factorization.

40568836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40568836 is about 6369.3670015159. The cubic root of 40568836 is about 343.6087244915.

The spelling of 40568836 in words is "forty million, five hundred sixty-eight thousand, eight hundred thirty-six".