402842801 has 2 divisors, whose sum is σ = 402842802. Its totient is φ = 402842800.

The previous prime is 402842789. The next prime is 402842809. The reversal of 402842801 is 108248204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260661025 + 142181776 = 16145^2 + 11924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402842801 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (402842809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201421400 + 201421401.

It is an arithmetic number, because the mean of its divisors is an integer number (201421401).

Almost surely, 2^402842801 is an apocalyptic number.

It is an amenable number.

402842801 is a deficient number, since it is larger than the sum of its proper divisors (1).

402842801 is an equidigital number, since it uses as much as digits as its factorization.

402842801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 402842801 is about 20070.9441980192. The cubic root of 402842801 is about 738.5476756374.

The spelling of 402842801 in words is "four hundred two million, eight hundred forty-two thousand, eight hundred one".