40444420223 has 2 divisors, whose sum is σ = 40444420224. Its totient is φ = 40444420222.

The previous prime is 40444420207. The next prime is 40444420253. The reversal of 40444420223 is 32202444404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40444420223 - 2⁴ = 40444420207 is a prime.

It is a super-2 number, since 2×40444420223² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40444420253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222210111 + 20222210112.

It is an arithmetic number, because the mean of its divisors is an integer number (20222210112).

Almost surely, 2^40444420223 is an apocalyptic number.

40444420223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444420223 is an equidigital number, since it uses as much as digits as its factorization.

40444420223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 40444420223 its reverse (32202444404), we get a palindrome (72646864627).

The spelling of 40444420223 in words is "forty billion, four hundred forty-four million, four hundred twenty thousand, two hundred twenty-three".