224012500 has 36 divisors (see below), whose sum is σ = 490023324. Its totient is φ = 89600000.

The previous prime is 224012497. The next prime is 224012507. The reversal of 224012500 is 5210422.

It can be written as a sum of positive squares in 6 ways, for example, as 221950404 + 2062096 = 14898^2 + 1436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224012507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3540 + ... + 21460.

It is an arithmetic number, because the mean of its divisors is an integer number (13611759).

Almost surely, 2^224012500 is an apocalyptic number.

224012500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245011662).

224012500 is an abundant number, since it is smaller than the sum of its proper divisors (266010824).

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

224012500 is an equidigital number, since it uses as much as digits as its factorization.

224012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17950 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 224012500 is about 14967.0471369606. The cubic root of 224012500 is about 607.3290909990.

Adding to 224012500 its reverse (5210422), we get a palindrome (229222922).

The spelling of 224012500 in words is "two hundred twenty-four million, twelve thousand, five hundred".