400600222 has 8 divisors (see below), whose sum is σ = 655527672. Its totient is φ = 182091000.

The previous prime is 400600219. The next prime is 400600253. The reversal of 400600222 is 222006004.

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 = 400600196 and 400600205.

It is a congruent number.

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, 9104529 + ... + 9104572.

It is an arithmetic number, because the mean of its divisors is an integer number (81940959).

Almost surely, 2^400600222 is an apocalyptic number.

400600222 is a deficient number, since it is larger than the sum of its proper divisors (254927450).

400600222 is a wasteful number, since it uses less digits than its factorization.

400600222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209114.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 400600222 is about 20014.9999250562. Note that the first 4 decimals coincide. The cubic root of 400600222 is about 737.1746550027.

Adding to 400600222 its reverse (222006004), we get a palindrome (622606226).

The spelling of 400600222 in words is "four hundred million, six hundred thousand, two hundred twenty-two".