400414441171 has 2 divisors, whose sum is σ = 400414441172. Its totient is φ = 400414441170.

The previous prime is 400414441157. The next prime is 400414441199. The reversal of 400414441171 is 171144414004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400414441171 - 2²⁷ = 400280223443 is a prime.

It is not a weakly prime, because it can be changed into another prime (400414441571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200207220585 + 200207220586.

It is an arithmetic number, because the mean of its divisors is an integer number (200207220586).

Almost surely, 2^400414441171 is an apocalyptic number.

400414441171 is a deficient number, since it is larger than the sum of its proper divisors (1).

400414441171 is an equidigital number, since it uses as much as digits as its factorization.

400414441171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

Adding to 400414441171 its reverse (171144414004), we get a palindrome (571558855175).

The spelling of 400414441171 in words is "four hundred billion, four hundred fourteen million, four hundred forty-one thousand, one hundred seventy-one".