224453440 has 28 divisors (see below), whose sum is σ = 534480516. Its totient is φ = 89781248.

The previous prime is 224453407. The next prime is 224453473. The reversal of 224453440 is 44354422.

It is an interprime number because it is at equal distance from previous prime (224453407) and next prime (224453473).

It can be written as a sum of positive squares in 2 ways, for example, as 67502656 + 156950784 = 8216^2 + 12528^2 .

It is a junction number, because it is equal to n+sod(n) for n = 224453399 and 224453408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350389 + ... + 351028.

Almost surely, 2^224453440 is an apocalyptic number.

224453440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224453440 is an abundant number, since it is smaller than the sum of its proper divisors (310027076).

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

224453440 is an equidigital number, since it uses as much as digits as its factorization.

224453440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701434 (or 701424 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 224453440 is about 14981.7702558810. The cubic root of 224453440 is about 607.7273130834.

The spelling of 224453440 in words is "two hundred twenty-four million, four hundred fifty-three thousand, four hundred forty".