400346334171 has 48 divisors (see below), whose sum is σ = 699847072704. Its totient is φ = 215287068672.

The previous prime is 400346334163. The next prime is 400346334181. The reversal of 400346334171 is 171433643004.

400346334171 is a `hidden beast` number, since 4 + 0 + 0 + 3 + 4 + 633 + 4 + 17 + 1 = 666.

It is not a de Polignac number, because 400346334171 - 2³ = 400346334163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400346334151) 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 in 47 ways as a sum of consecutive naturals, for example, 12404271 + ... + 12436503.

It is an arithmetic number, because the mean of its divisors is an integer number (14580147348).

Almost surely, 2^400346334171 is an apocalyptic number.

400346334171 is a deficient number, since it is larger than the sum of its proper divisors (299500738533).

400346334171 is a wasteful number, since it uses less digits than its factorization.

400346334171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43860 (or 43857 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 400346334171 its reverse (171433643004), we get a palindrome (571779977175).

The spelling of 400346334171 in words is "four hundred billion, three hundred forty-six million, three hundred thirty-four thousand, one hundred seventy-one".