224242420 has 24 divisors (see below), whose sum is σ = 481862304. Its totient is φ = 87610656.

The previous prime is 224242397. The next prime is 224242441. The reversal of 224242420 is 24242422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 224242391 and 224242400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129514 + ... + 131233.

It is an arithmetic number, because the mean of its divisors is an integer number (20077596).

Almost surely, 2^224242420 is an apocalyptic number.

224242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224242420 is an abundant number, since it is smaller than the sum of its proper divisors (257619884).

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

224242420 is a wasteful number, since it uses less digits than its factorization.

224242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260799 (or 260797 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 224242420 is about 14974.7260408997. The cubic root of 224242420 is about 607.5368016679.

Adding to 224242420 its reverse (24242422), we get a palindrome (248484842).

The spelling of 224242420 in words is "two hundred twenty-four million, two hundred forty-two thousand, four hundred twenty".