224454645 has 20 divisors (see below), whose sum is σ = 402356460. Its totient is φ = 119708928.

The previous prime is 224454641. The next prime is 224454673. The reversal of 224454645 is 546454422.

224454645 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 5 + 4 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 90497169 + 133957476 = 9513^2 + 11574^2 .

It is not a de Polignac number, because 224454645 - 2² = 224454641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224454641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 276700 + ... + 277509.

It is an arithmetic number, because the mean of its divisors is an integer number (20117823).

Almost surely, 2^224454645 is an apocalyptic number.

It is an amenable number.

224454645 is a deficient number, since it is larger than the sum of its proper divisors (177901815).

224454645 is an equidigital number, since it uses as much as digits as its factorization.

224454645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554226 (or 554217 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 224454645 is about 14981.8104713683. The cubic root of 224454645 is about 607.7284006291.

The spelling of 224454645 in words is "two hundred twenty-four million, four hundred fifty-four thousand, six hundred forty-five".