224646985 has 4 divisors (see below), whose sum is σ = 269576388. Its totient is φ = 179717584.

The previous prime is 224646977. The next prime is 224646997. The reversal of 224646985 is 589646422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163635264 + 61011721 = 12792^2 + 7811^2 .

It is a cyclic number.

It is not a de Polignac number, because 224646985 - 2³ = 224646977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22464694 + ... + 22464703.

It is an arithmetic number, because the mean of its divisors is an integer number (67394097).

Almost surely, 2^224646985 is an apocalyptic number.

It is an amenable number.

224646985 is a deficient number, since it is larger than the sum of its proper divisors (44929403).

224646985 is an equidigital number, since it uses as much as digits as its factorization.

224646985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44929402.

The product of its digits is 829440, while the sum is 46.

The square root of 224646985 is about 14988.2282141686. The cubic root of 224646985 is about 607.9019429020.

The spelling of 224646985 in words is "two hundred twenty-four million, six hundred forty-six thousand, nine hundred eighty-five".