40068563 has 4 divisors (see below), whose sum is σ = 40575840. Its totient is φ = 39561288.

The previous prime is 40068559. The next prime is 40068571. The reversal of 40068563 is 36586004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40068563 - 2² = 40068559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40068593) 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, 253520 + ... + 253677.

It is an arithmetic number, because the mean of its divisors is an integer number (10143960).

Almost surely, 2^40068563 is an apocalyptic number.

40068563 is a deficient number, since it is larger than the sum of its proper divisors (507277).

40068563 is an equidigital number, since it uses as much as digits as its factorization.

40068563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507276.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 40068563 is about 6329.9733806707. The cubic root of 40068563 is about 342.1904795985.

The spelling of 40068563 in words is "forty million, sixty-eight thousand, five hundred sixty-three".