40068565 has 8 divisors (see below), whose sum is σ = 48127320. Its totient is φ = 32024832.

The previous prime is 40068559. The next prime is 40068571. The reversal of 40068565 is 56586004.

It is an interprime number because it is at equal distance from previous prime (40068559) and next prime (40068571).

It can be written as a sum of positive squares in 4 ways, for example, as 13256881 + 26811684 = 3641^2 + 5178^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40068565 - 2¹¹ = 40066517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40068565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3337 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (6015915).

Almost surely, 2^40068565 is an apocalyptic number.

It is an amenable number.

40068565 is a deficient number, since it is larger than the sum of its proper divisors (8058755).

40068565 is a wasteful number, since it uses less digits than its factorization.

40068565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7511.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 40068565 is about 6329.9735386493. The cubic root of 40068565 is about 342.1904852919.

The spelling of 40068565 in words is "forty million, sixty-eight thousand, five hundred sixty-five".