40320223 has 8 divisors (see below), whose sum is σ = 42508800. Its totient is φ = 38138328.

The previous prime is 40320221. The next prime is 40320229. The reversal of 40320223 is 32202304.

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 40320223 - 2¹ = 40320221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40320197 and 40320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15168 + ... + 17626.

It is an arithmetic number, because the mean of its divisors is an integer number (5313600).

Almost surely, 2^40320223 is an apocalyptic number.

40320223 is a deficient number, since it is larger than the sum of its proper divisors (2188577).

40320223 is a wasteful number, since it uses less digits than its factorization.

40320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40320223 is about 6349.8207061302. The cubic root of 40320223 is about 342.9053874653.

Adding to 40320223 its reverse (32202304), we get a palindrome (72522527).

It can be divided in two parts, 403202 and 23, that added together give a square (403225 = 635²).

The spelling of 40320223 in words is "forty million, three hundred twenty thousand, two hundred twenty-three".