400204522312 has 16 divisors (see below), whose sum is σ = 857581119360. Its totient is φ = 171516223824.

The previous prime is 400204522303. The next prime is 400204522349. The reversal of 400204522312 is 213225402004.

It is a super-2 number, since 2×400204522312² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3573254608 + ... + 3573254719.

It is an arithmetic number, because the mean of its divisors is an integer number (53598819960).

Almost surely, 2^400204522312 is an apocalyptic number.

It is an amenable number.

400204522312 is an abundant number, since it is smaller than the sum of its proper divisors (457376597048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400204522312 is a wasteful number, since it uses less digits than its factorization.

400204522312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146509340 (or 7146509336 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 400204522312 its reverse (213225402004), we get a palindrome (613429924316).

The spelling of 400204522312 in words is "four hundred billion, two hundred four million, five hundred twenty-two thousand, three hundred twelve".