402344443201 has 2 divisors, whose sum is σ = 402344443202. Its totient is φ = 402344443200.

The previous prime is 402344443199. The next prime is 402344443219. The reversal of 402344443201 is 102344443204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392696489025 + 9647954176 = 626655^2 + 98224^2 .

It is a cyclic number.

It is not a de Polignac number, because 402344443201 - 2¹ = 402344443199 is a prime.

Together with 402344443199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (402344443601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201172221600 + 201172221601.

It is an arithmetic number, because the mean of its divisors is an integer number (201172221601).

Almost surely, 2^402344443201 is an apocalyptic number.

It is an amenable number.

402344443201 is a deficient number, since it is larger than the sum of its proper divisors (1).

402344443201 is an equidigital number, since it uses as much as digits as its factorization.

402344443201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 402344443201 its reverse (102344443204), we get a palindrome (504688886405).

The spelling of 402344443201 in words is "four hundred two billion, three hundred forty-four million, four hundred forty-three thousand, two hundred one".