224444440 has 32 divisors (see below), whose sum is σ = 550910160. Its totient is φ = 81616000.

The previous prime is 224444393. The next prime is 224444449. The reversal of 224444440 is 44444422.

It is a junction number, because it is equal to n+sod(n) for n = 224444399 and 224444408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224444449) 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, 254611 + ... + 255490.

Almost surely, 2^224444440 is an apocalyptic number.

224444440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224444440 is an abundant number, since it is smaller than the sum of its proper divisors (326465720).

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

224444440 is a wasteful number, since it uses less digits than its factorization.

224444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510123 (or 510119 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 224444440 is about 14981.4698878314. The cubic root of 224444440 is about 607.7191902126.

Adding to 224444440 its reverse (44444422), we get a palindrome (268888862).

It can be divided in two parts, 2 and 24444440, that added together give a palindrome (24444442).

The spelling of 224444440 in words is "two hundred twenty-four million, four hundred forty-four thousand, four hundred forty".