40013223 has 8 divisors (see below), whose sum is σ = 56489328. Its totient is φ = 25106304.

The previous prime is 40013201. The next prime is 40013227. The reversal of 40013223 is 32231004.

40013223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40013223 - 2⁸ = 40012967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013227) 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 7 ways as a sum of consecutive naturals, for example, 392236 + ... + 392337.

It is an arithmetic number, because the mean of its divisors is an integer number (7061166).

Almost surely, 2^40013223 is an apocalyptic number.

40013223 is a deficient number, since it is larger than the sum of its proper divisors (16476105).

40013223 is a wasteful number, since it uses less digits than its factorization.

40013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784593.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40013223 is about 6325.6006038953. The cubic root of 40013223 is about 342.0328702034.

Adding to 40013223 its reverse (32231004), we get a palindrome (72244227).

The spelling of 40013223 in words is "forty million, thirteen thousand, two hundred twenty-three".