224235220 has 24 divisors (see below), whose sum is σ = 513703008. Its totient is φ = 81540000.

The previous prime is 224235203. The next prime is 224235227. The reversal of 224235220 is 22532422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 224235191 and 224235200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224235227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509406 + ... + 509845.

It is an arithmetic number, because the mean of its divisors is an integer number (21404292).

Almost surely, 2^224235220 is an apocalyptic number.

224235220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224235220 is an abundant number, since it is smaller than the sum of its proper divisors (289467788).

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

224235220 is a wasteful number, since it uses less digits than its factorization.

224235220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019271 (or 1019269 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 224235220 is about 14974.4856339041. The cubic root of 224235220 is about 607.5302993124.

Adding to 224235220 its reverse (22532422), we get a palindrome (246767642).

The spelling of 224235220 in words is "two hundred twenty-four million, two hundred thirty-five thousand, two hundred twenty".