405400063 has 2 divisors, whose sum is σ = 405400064. Its totient is φ = 405400062.

The previous prime is 405400027. The next prime is 405400109. The reversal of 405400063 is 360004504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405400063 is a prime.

It is a super-2 number, since 2×405400063² = 328698422160807938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405400363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202700031 + 202700032.

It is an arithmetic number, because the mean of its divisors is an integer number (202700032).

Almost surely, 2^405400063 is an apocalyptic number.

405400063 is a deficient number, since it is larger than the sum of its proper divisors (1).

405400063 is an equidigital number, since it uses as much as digits as its factorization.

405400063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405400063 is about 20134.5489892374. The cubic root of 405400063 is about 740.1071569925.

Adding to 405400063 its reverse (360004504), we get a palindrome (765404567).

The spelling of 405400063 in words is "four hundred five million, four hundred thousand, sixty-three".