400444200224 has 12 divisors (see below), whose sum is σ = 788374519254. Its totient is φ = 200222100096.

The previous prime is 400444200173. The next prime is 400444200229. The reversal of 400444200224 is 422002444004.

It can be written as a sum of positive squares in only one way, i.e., 336469603600 + 63974596624 = 580060^2 + 252932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400444200193 and 400444200202.

It is not an unprimeable number, because it can be changed into a prime (400444200229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256940597 + ... + 6256940660.

Almost surely, 2^400444200224 is an apocalyptic number.

It is an amenable number.

400444200224 is a deficient number, since it is larger than the sum of its proper divisors (387930319030).

400444200224 is a wasteful number, since it uses less digits than its factorization.

400444200224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513881267 (or 12513881259 counting only the distinct ones).

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

Adding to 400444200224 its reverse (422002444004), we get a palindrome (822446644228).

The spelling of 400444200224 in words is "four hundred billion, four hundred forty-four million, two hundred thousand, two hundred twenty-four".