402404422243 has 2 divisors, whose sum is σ = 402404422244. Its totient is φ = 402404422242.

The previous prime is 402404422229. The next prime is 402404422291. The reversal of 402404422243 is 342224404204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402404422243 - 2¹⁷ = 402404291171 is a prime.

It is not a weakly prime, because it can be changed into another prime (402404422643) 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 as a sum of consecutive naturals, namely, 201202211121 + 201202211122.

It is an arithmetic number, because the mean of its divisors is an integer number (201202211122).

Almost surely, 2^402404422243 is an apocalyptic number.

402404422243 is a deficient number, since it is larger than the sum of its proper divisors (1).

402404422243 is an equidigital number, since it uses as much as digits as its factorization.

402404422243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 402404422243 its reverse (342224404204), we get a palindrome (744628826447).

The spelling of 402404422243 in words is "four hundred two billion, four hundred four million, four hundred twenty-two thousand, two hundred forty-three".