224234440 has 32 divisors (see below), whose sum is σ = 505035000. Its totient is φ = 89603584.

The previous prime is 224234411. The next prime is 224234441. The reversal of 224234440 is 44432422.

It can be written as a sum of positive squares in 4 ways, for example, as 149964516 + 74269924 = 12246^2 + 8618^2 .

It is a super-2 number, since 2×224234440² = 100562168164227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (224234441) 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, 49386 + ... + 53734.

Almost surely, 2^224234440 is an apocalyptic number.

224234440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224234440 is an abundant number, since it is smaller than the sum of its proper divisors (280800560).

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

224234440 is a wasteful number, since it uses less digits than its factorization.

224234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5649 (or 5645 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 224234440 is about 14974.4595895812. The cubic root of 224234440 is about 607.5295948822.

Adding to 224234440 its reverse (44432422), we get a palindrome (268666862).

The spelling of 224234440 in words is "two hundred twenty-four million, two hundred thirty-four thousand, four hundred forty".