223040220 has 48 divisors (see below), whose sum is σ = 672554400. Its totient is φ = 54902016.

The previous prime is 223040197. The next prime is 223040227. The reversal of 223040220 is 22040322.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 223040220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223040227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142195 + ... + 143754.

It is an arithmetic number, because the mean of its divisors is an integer number (14011550).

Almost surely, 2^223040220 is an apocalyptic number.

223040220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223040220 is an abundant number, since it is smaller than the sum of its proper divisors (449514180).

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

223040220 is a wasteful number, since it uses less digits than its factorization.

223040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285974 (or 285972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 223040220 is about 14934.5311275580. The cubic root of 223040220 is about 606.4491545368.

Adding to 223040220 its reverse (22040322), we get a palindrome (245080542).

The spelling of 223040220 in words is "two hundred twenty-three million, forty thousand, two hundred twenty".