40565568 has 56 divisors (see below), whose sum is σ = 109179360. Its totient is φ = 13288960.

The previous prime is 40565543. The next prime is 40565573. The reversal of 40565568 is 86556504.

40565568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9538 + ... + 13118.

Almost surely, 2^40565568 is an apocalyptic number.

40565568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40565568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54589680).

40565568 is an abundant number, since it is smaller than the sum of its proper divisors (68613792).

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

40565568 is a wasteful number, since it uses less digits than its factorization.

40565568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 40565568 is about 6369.1104559428. The cubic root of 40565568 is about 343.5994978406.

The spelling of 40565568 in words is "forty million, five hundred sixty-five thousand, five hundred sixty-eight".