400492163 has 2 divisors, whose sum is σ = 400492164. Its totient is φ = 400492162.

The previous prime is 400492151. The next prime is 400492207. The reversal of 400492163 is 361294004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400492163 - 2¹⁶ = 400426627 is a prime.

It is not a weakly prime, because it can be changed into another prime (400492363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200246081 + 200246082.

It is an arithmetic number, because the mean of its divisors is an integer number (200246082).

Almost surely, 2^400492163 is an apocalyptic number.

400492163 is a deficient number, since it is larger than the sum of its proper divisors (1).

400492163 is an equidigital number, since it uses as much as digits as its factorization.

400492163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 400492163 is about 20012.3002925701. The cubic root of 400492163 is about 737.1083665393.

The spelling of 400492163 in words is "four hundred million, four hundred ninety-two thousand, one hundred sixty-three".