400206183044 has 24 divisors (see below), whose sum is σ = 733019235648. Its totient is φ = 190824685920.

The previous prime is 400206183031. The next prime is 400206183079. The reversal of 400206183044 is 440381602004.

It is a self number, because there is not a number n which added to its sum of digits gives 400206183044.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6540647 + ... + 6601550.

It is an arithmetic number, because the mean of its divisors is an integer number (30542468152).

Almost surely, 2^400206183044 is an apocalyptic number.

It is an amenable number.

400206183044 is a deficient number, since it is larger than the sum of its proper divisors (332813052604).

400206183044 is a wasteful number, since it uses less digits than its factorization.

400206183044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142555 (or 13142553 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 400206183044 its reverse (440381602004), we get a palindrome (840587785048).

The spelling of 400206183044 in words is "four hundred billion, two hundred six million, one hundred eighty-three thousand, forty-four".