224004213 has 6 divisors (see below), whose sum is σ = 323561654. Its totient is φ = 149336136.

The previous prime is 224004211. The next prime is 224004241. The reversal of 224004213 is 312400422.

224004213 is a `hidden beast` number, since 2 + 240 + 0 + 421 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 124144164 + 99860049 = 11142^2 + 9993^2 .

It is not a de Polignac number, because 224004213 - 2¹ = 224004211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224004211) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 12444670 + ... + 12444687.

Almost surely, 2^224004213 is an apocalyptic number.

It is an amenable number.

224004213 is a deficient number, since it is larger than the sum of its proper divisors (99557441).

224004213 is a wasteful number, since it uses less digits than its factorization.

224004213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24889363 (or 24889360 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 224004213 is about 14966.7702928855. The cubic root of 224004213 is about 607.3216018362.

Adding to 224004213 its reverse (312400422), we get a palindrome (536404635).

The spelling of 224004213 in words is "two hundred twenty-four million, four thousand, two hundred thirteen".