400244422024 has 16 divisors (see below), whose sum is σ = 789956096400. Its totient is φ = 189589462992.

The previous prime is 400244421979. The next prime is 400244422033. The reversal of 400244422024 is 420224442004.

It is a super-2 number, since 2×400244422024² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400244421983 and 400244422001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316593342 + ... + 1316593645.

It is an arithmetic number, because the mean of its divisors is an integer number (49372256025).

Almost surely, 2^400244422024 is an apocalyptic number.

It is an amenable number.

400244422024 is a deficient number, since it is larger than the sum of its proper divisors (389711674376).

400244422024 is a wasteful number, since it uses less digits than its factorization.

400244422024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633187012 (or 2633187008 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 400244422024 its reverse (420224442004), we get a palindrome (820468864028).

The spelling of 400244422024 in words is "four hundred billion, two hundred forty-four million, four hundred twenty-two thousand, twenty-four".