224478385 has 8 divisors (see below), whose sum is σ = 269556840. Its totient is φ = 179460864.

The previous prime is 224478383. The next prime is 224478389. The reversal of 224478385 is 583874422.

It can be written as a sum of positive squares in 4 ways, for example, as 45373696 + 179104689 = 6736^2 + 13383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224478385 - 2¹ = 224478383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224478383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6690 + ... + 22219.

It is an arithmetic number, because the mean of its divisors is an integer number (33694605).

Almost surely, 2^224478385 is an apocalyptic number.

It is an amenable number.

224478385 is a deficient number, since it is larger than the sum of its proper divisors (45078455).

224478385 is a wasteful number, since it uses less digits than its factorization.

224478385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30467.

The product of its digits is 430080, while the sum is 43.

The square root of 224478385 is about 14982.6027445167. The cubic root of 224478385 is about 607.7498258389.

The spelling of 224478385 in words is "two hundred twenty-four million, four hundred seventy-eight thousand, three hundred eighty-five".