400002244424 has 16 divisors (see below), whose sum is σ = 750529810800. Its totient is φ = 199860961552.

The previous prime is 400002244409. The next prime is 400002244441. The reversal of 400002244424 is 424442200004.

It is a junction number, because it is equal to n+sod(n) for n = 400002244393 and 400002244402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17507954 + ... + 17530785.

It is an arithmetic number, because the mean of its divisors is an integer number (46908113175).

Almost surely, 2^400002244424 is an apocalyptic number.

It is an amenable number.

400002244424 is a deficient number, since it is larger than the sum of its proper divisors (350527566376).

400002244424 is a wasteful number, since it uses less digits than its factorization.

400002244424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35040172 (or 35040168 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 400002244424 its reverse (424442200004), we get a palindrome (824444444428).

The spelling of 400002244424 in words is "four hundred billion, two million, two hundred forty-four thousand, four hundred twenty-four".