404400224332420 has 48 divisors (see below), whose sum is σ = 863641705550400. Its totient is φ = 159017043985280.

The previous prime is 404400224332331. The next prime is 404400224332459. The reversal of 404400224332420 is 24233422004404.

It is a super-2 number, since 2×404400224332420² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143817150 + ... + 146602090.

It is an arithmetic number, because the mean of its divisors is an integer number (17992535532300).

Almost surely, 2^{404400224332420} is an apocalyptic number.

It is an amenable number.

404400224332420 is an abundant number, since it is smaller than the sum of its proper divisors (459241481217980).

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

404400224332420 is a wasteful number, since it uses less digits than its factorization.

404400224332420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908068 (or 2908066 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 404400224332420 its reverse (24233422004404), we get a palindrome (428633646336824).

The spelling of 404400224332420 in words is "four hundred four trillion, four hundred billion, two hundred twenty-four million, three hundred thirty-two thousand, four hundred twenty".