224204999 has 4 divisors (see below), whose sum is σ = 228435336. Its totient is φ = 219974664.

The previous prime is 224204987. The next prime is 224205017. The reversal of 224204999 is 999402422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999402422 = 2 ⋅499701211.

It is a cyclic number.

It is not a de Polignac number, because 224204999 - 2¹² = 224200903 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 (224204599) 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, 2115089 + ... + 2115194.

It is an arithmetic number, because the mean of its divisors is an integer number (57108834).

Almost surely, 2^224204999 is an apocalyptic number.

224204999 is a deficient number, since it is larger than the sum of its proper divisors (4230337).

224204999 is an equidigital number, since it uses as much as digits as its factorization.

224204999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230336.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 224204999 is about 14973.4765168280. The cubic root of 224204999 is about 607.5030050600.

The spelling of 224204999 in words is "two hundred twenty-four million, two hundred four thousand, nine hundred ninety-nine".