224148520 has 16 divisors (see below), whose sum is σ = 504334260. Its totient is φ = 89659392.

The previous prime is 224148503. The next prime is 224148521. The reversal of 224148520 is 25841422.

It can be written as a sum of positive squares in 2 ways, for example, as 203518756 + 20629764 = 14266^2 + 4542^2 .

It is not an unprimeable number, because it can be changed into a prime (224148521) 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 3 ways as a sum of consecutive naturals, for example, 2801817 + ... + 2801896.

Almost surely, 2^224148520 is an apocalyptic number.

224148520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224148520 is an abundant number, since it is smaller than the sum of its proper divisors (280185740).

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

224148520 is a wasteful number, since it uses less digits than its factorization.

224148520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603724 (or 5603720 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 224148520 is about 14971.5904298775. The cubic root of 224148520 is about 607.4519891834.

Adding to 224148520 its reverse (25841422), we get a palindrome (249989942).

The spelling of 224148520 in words is "two hundred twenty-four million, one hundred forty-eight thousand, five hundred twenty".