224002013 has 4 divisors (see below), whose sum is σ = 237178620. Its totient is φ = 210825408.

The previous prime is 224001997. The next prime is 224002019. The reversal of 224002013 is 310200422.

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 152819044 + 71182969 = 12362^2 + 8437^2 .

It is a cyclic number.

It is not a de Polignac number, because 224002013 - 2⁴ = 224001997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224002019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6588278 + ... + 6588311.

It is an arithmetic number, because the mean of its divisors is an integer number (59294655).

Almost surely, 2^224002013 is an apocalyptic number.

It is an amenable number.

224002013 is a deficient number, since it is larger than the sum of its proper divisors (13176607).

224002013 is a wasteful number, since it uses less digits than its factorization.

224002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176606.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 224002013 is about 14966.6967965547. The cubic root of 224002013 is about 607.3196136118.

Adding to 224002013 its reverse (310200422), we get a palindrome (534202435).

The spelling of 224002013 in words is "two hundred twenty-four million, two thousand, thirteen".