40320063 has 36 divisors (see below), whose sum is σ = 69025008. Its totient is φ = 22216320.

The previous prime is 40320053. The next prime is 40320067. The reversal of 40320063 is 36002304.

40320063 is a `hidden beast` number, since 403 + 200 + 63 = 666.

It is not a de Polignac number, because 40320063 - 2¹⁰ = 40319039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320067) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52603 + ... + 53363.

Almost surely, 2^40320063 is an apocalyptic number.

40320063 is a deficient number, since it is larger than the sum of its proper divisors (28704945).

40320063 is a wasteful number, since it uses less digits than its factorization.

40320063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40320063 is about 6349.8081073368. The cubic root of 40320063 is about 342.9049338887.

Adding to 40320063 its reverse (36002304), we get a palindrome (76322367).

It can be divided in two parts, 403200 and 63, that multiplied together give a square (25401600 = 5040²).

The spelling of 40320063 in words is "forty million, three hundred twenty thousand, sixty-three".