40420012223 has 4 divisors (see below), whose sum is σ = 40423595160. Its totient is φ = 40416429288.

The previous prime is 40420012201. The next prime is 40420012247. The reversal of 40420012223 is 32221002404.

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 40420012223 - 2³⁴ = 23240143039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40420012195 and 40420012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774493 + ... + 1797126.

It is an arithmetic number, because the mean of its divisors is an integer number (10105898790).

Almost surely, 2^40420012223 is an apocalyptic number.

40420012223 is a deficient number, since it is larger than the sum of its proper divisors (3582937).

40420012223 is a wasteful number, since it uses less digits than its factorization.

40420012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582936.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40420012223 its reverse (32221002404), we get a palindrome (72641014627).

The spelling of 40420012223 in words is "forty billion, four hundred twenty million, twelve thousand, two hundred twenty-three".