400340131322918 has 8 divisors (see below), whose sum is σ = 632115996825720. Its totient is φ = 189634799047680.

The previous prime is 400340131322917. The next prime is 400340131322977. The reversal of 400340131322918 is 819223131043004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400340131322917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5267633306843 + ... + 5267633306918.

It is an arithmetic number, because the mean of its divisors is an integer number (79014499603215).

Almost surely, 2^{400340131322918} is an apocalyptic number.

400340131322918 is a deficient number, since it is larger than the sum of its proper divisors (231775865502802).

400340131322918 is a wasteful number, since it uses less digits than its factorization.

400340131322918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10535266613782.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 400340131322918 in words is "four hundred trillion, three hundred forty billion, one hundred thirty-one million, three hundred twenty-two thousand, nine hundred eighteen".