224225440 has 24 divisors (see below), whose sum is σ = 529732980. Its totient is φ = 89690112.

The previous prime is 224225437. The next prime is 224225489. The reversal of 224225440 is 44522422.

It can be written as a sum of positive squares in 2 ways, for example, as 198133776 + 26091664 = 14076^2 + 5108^2 .

It is an unprimeable number.

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, 700545 + ... + 700864.

Almost surely, 2^224225440 is an apocalyptic number.

224225440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224225440 is an abundant number, since it is smaller than the sum of its proper divisors (305507540).

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

224225440 is a wasteful number, since it uses less digits than its factorization.

224225440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401424 (or 1401416 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 224225440 is about 14974.1590748863. The cubic root of 224225440 is about 607.5214667232.

Adding to 224225440 its reverse (44522422), we get a palindrome (268747862).

The spelling of 224225440 in words is "two hundred twenty-four million, two hundred twenty-five thousand, four hundred forty".