210448220 has 12 divisors (see below), whose sum is σ = 441941304. Its totient is φ = 84179280.

The previous prime is 210448207. The next prime is 210448279. The reversal of 210448220 is 22844012.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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, 5261186 + ... + 5261225.

It is an arithmetic number, because the mean of its divisors is an integer number (36828442).

Almost surely, 2^210448220 is an apocalyptic number.

210448220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210448220 is an abundant number, since it is smaller than the sum of its proper divisors (231493084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210448220 is a wasteful number, since it uses less digits than its factorization.

210448220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522420 (or 10522418 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 210448220 is about 14506.8335621527. The cubic root of 210448220 is about 594.8147812256.

The spelling of 210448220 in words is "two hundred ten million, four hundred forty-eight thousand, two hundred twenty".