223628220 has 36 divisors (see below), whose sum is σ = 678339480. Its totient is φ = 59634144.

The previous prime is 223628213. The next prime is 223628239. The reversal of 223628220 is 22826322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621010 + ... + 621369.

Almost surely, 2^223628220 is an apocalyptic number.

223628220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223628220 is an abundant number, since it is smaller than the sum of its proper divisors (454711260).

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

223628220 is a wasteful number, since it uses less digits than its factorization.

223628220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242394 (or 1242389 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 223628220 is about 14954.2040911578. The cubic root of 223628220 is about 606.9816133616.

The spelling of 223628220 in words is "two hundred twenty-three million, six hundred twenty-eight thousand, two hundred twenty".