402440424341 has 2 divisors, whose sum is σ = 402440424342. Its totient is φ = 402440424340.

The previous prime is 402440424283. The next prime is 402440424343. The reversal of 402440424341 is 143424044204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294952179025 + 107488245316 = 543095^2 + 327854^2 .

It is a cyclic number.

It is not a de Polignac number, because 402440424341 - 2⁶ = 402440424277 is a prime.

It is a Sophie Germain prime.

Together with 402440424343, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402440424298 and 402440424307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402440424343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201220212170 + 201220212171.

It is an arithmetic number, because the mean of its divisors is an integer number (201220212171).

Almost surely, 2^402440424341 is an apocalyptic number.

It is an amenable number.

402440424341 is a deficient number, since it is larger than the sum of its proper divisors (1).

402440424341 is an equidigital number, since it uses as much as digits as its factorization.

402440424341 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 32.

Adding to 402440424341 its reverse (143424044204), we get a palindrome (545864468545).

The spelling of 402440424341 in words is "four hundred two billion, four hundred forty million, four hundred twenty-four thousand, three hundred forty-one".