400220210 has 32 divisors (see below), whose sum is σ = 777954240. Its totient is φ = 147365568.

The previous prime is 400220209. The next prime is 400220281. The reversal of 400220210 is 12022004.

It is a junction number, because it is equal to n+sod(n) for n = 400220191 and 400220200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45209 + ... + 53331.

It is an arithmetic number, because the mean of its divisors is an integer number (24311070).

Almost surely, 2^400220210 is an apocalyptic number.

400220210 is a deficient number, since it is larger than the sum of its proper divisors (377734030).

400220210 is a wasteful number, since it uses less digits than its factorization.

400220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8522.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 400220210 is about 20005.5044925141. The cubic root of 400220210 is about 736.9414850195.

Adding to 400220210 its reverse (12022004), we get a palindrome (412242214).

The spelling of 400220210 in words is "four hundred million, two hundred twenty thousand, two hundred ten".