400022222623 has 2 divisors, whose sum is σ = 400022222624. Its totient is φ = 400022222622.

The previous prime is 400022222569. The next prime is 400022222669. The reversal of 400022222623 is 326222220004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400022222623 - 2⁹ = 400022222111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400022222023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200011111311 + 200011111312.

It is an arithmetic number, because the mean of its divisors is an integer number (200011111312).

Almost surely, 2^400022222623 is an apocalyptic number.

400022222623 is a deficient number, since it is larger than the sum of its proper divisors (1).

400022222623 is an equidigital number, since it uses as much as digits as its factorization.

400022222623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 400022222623 its reverse (326222220004), we get a palindrome (726244442627).

The spelling of 400022222623 in words is "four hundred billion, twenty-two million, two hundred twenty-two thousand, six hundred twenty-three".