400004402224 has 40 divisors (see below), whose sum is σ = 885753808128. Its totient is φ = 171424695360.

The previous prime is 400004402209. The next prime is 400004402243. The reversal of 400004402224 is 422204400004.

It is a super-2 number, since 2×400004402224² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400004402195 and 400004402204.

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 7 ways as a sum of consecutive naturals, for example, 6056709 + ... + 6122395.

Almost surely, 2^400004402224 is an apocalyptic number.

It is an amenable number.

400004402224 is an abundant number, since it is smaller than the sum of its proper divisors (485749405904).

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

400004402224 is a wasteful number, since it uses less digits than its factorization.

400004402224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120073 (or 120067 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 400004402224 its reverse (422204400004), we get a palindrome (822208802228).

The spelling of 400004402224 in words is "four hundred billion, four million, four hundred two thousand, two hundred twenty-four".