400244222 has 8 divisors (see below), whose sum is σ = 686132976. Its totient is φ = 171533232.

The previous prime is 400244219. The next prime is 400244227. The reversal of 400244222 is 222442004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400244194 and 400244203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400244227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14294423 + ... + 14294450.

It is an arithmetic number, because the mean of its divisors is an integer number (85766622).

Almost surely, 2^400244222 is an apocalyptic number.

400244222 is a deficient number, since it is larger than the sum of its proper divisors (285888754).

400244222 is a wasteful number, since it uses less digits than its factorization.

400244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28588882.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 400244222 is about 20006.1046183409. The cubic root of 400244222 is about 736.9562228102.

Adding to 400244222 its reverse (222442004), we get a palindrome (622686226).

The spelling of 400244222 in words is "four hundred million, two hundred forty-four thousand, two hundred twenty-two".