40305223 has 8 divisors (see below), whose sum is σ = 48066048. Its totient is φ = 33045144.

The previous prime is 40305217. The next prime is 40305227. The reversal of 40305223 is 32250304.

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 40305223 - 2²⁵ = 6750791 is a prime.

It is a super-2 number, since 2×40305223² = 3249022002159458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40305223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40305227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125011 + ... + 125332.

It is an arithmetic number, because the mean of its divisors is an integer number (6008256).

Almost surely, 2^40305223 is an apocalyptic number.

40305223 is a deficient number, since it is larger than the sum of its proper divisors (7760825).

40305223 is a wasteful number, since it uses less digits than its factorization.

40305223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250373.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40305223 is about 6348.6394605459. The cubic root of 40305223 is about 342.8628594368.

Adding to 40305223 its reverse (32250304), we get a palindrome (72555527).

The spelling of 40305223 in words is "forty million, three hundred five thousand, two hundred twenty-three".