40003223 has 4 divisors (see below), whose sum is σ = 43080408. Its totient is φ = 36926040.

The previous prime is 40003219. The next prime is 40003241. The reversal of 40003223 is 32230004.

40003223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40003223 - 2² = 40003219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40003198 and 40003207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1538573 + ... + 1538598.

It is an arithmetic number, because the mean of its divisors is an integer number (10770102).

Almost surely, 2^40003223 is an apocalyptic number.

40003223 is a deficient number, since it is larger than the sum of its proper divisors (3077185).

40003223 is a wasteful number, since it uses less digits than its factorization.

40003223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077184.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40003223 is about 6324.8101157268. The cubic root of 40003223 is about 342.0043745094.

Adding to 40003223 its reverse (32230004), we get a palindrome (72233227).

The spelling of 40003223 in words is "forty million, three thousand, two hundred twenty-three".