400221303404 has 24 divisors (see below), whose sum is σ = 798631652448. Its totient is φ = 173851787520.

The previous prime is 400221303403. The next prime is 400221303409. The reversal of 400221303404 is 404303122004.

It is a self number, because there is not a number n which added to its sum of digits gives 400221303404.

It is not an unprimeable number, because it can be changed into a prime (400221303403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226368632 + ... + 226370399.

It is an arithmetic number, because the mean of its divisors is an integer number (33276318852).

Almost surely, 2^400221303404 is an apocalyptic number.

It is an amenable number.

400221303404 is a deficient number, since it is larger than the sum of its proper divisors (398410349044).

400221303404 is a wasteful number, since it uses less digits than its factorization.

400221303404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452739065 (or 452739063 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 400221303404 its reverse (404303122004), we get a palindrome (804524425408).

The spelling of 400221303404 in words is "four hundred billion, two hundred twenty-one million, three hundred three thousand, four hundred four".