401402063 has 2 divisors, whose sum is σ = 401402064. Its totient is φ = 401402062.

The previous prime is 401402059. The next prime is 401402077. The reversal of 401402063 is 360204104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401402063 - 2² = 401402059 is a prime.

It is a super-2 number, since 2×401402063² = 322247232361311938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401402083) 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, 200701031 + 200701032.

It is an arithmetic number, because the mean of its divisors is an integer number (200701032).

Almost surely, 2^401402063 is an apocalyptic number.

401402063 is a deficient number, since it is larger than the sum of its proper divisors (1).

401402063 is an equidigital number, since it uses as much as digits as its factorization.

401402063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 401402063 is about 20035.0209133906. The cubic root of 401402063 is about 737.6661698917. Note that the first 3 decimals are identical.

Adding to 401402063 its reverse (360204104), we get a palindrome (761606167).

The spelling of 401402063 in words is "four hundred one million, four hundred two thousand, sixty-three".