224340905 has 4 divisors (see below), whose sum is σ = 269209092. Its totient is φ = 179472720.

The previous prime is 224340887. The next prime is 224340913. The reversal of 224340905 is 509043422.

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 116014441 + 108326464 = 10771^2 + 10408^2 .

It is not a de Polignac number, because 224340905 - 2¹⁴ = 224324521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22434086 + ... + 22434095.

It is an arithmetic number, because the mean of its divisors is an integer number (67302273).

Almost surely, 2^224340905 is an apocalyptic number.

It is an amenable number.

224340905 is a deficient number, since it is larger than the sum of its proper divisors (44868187).

224340905 is an equidigital number, since it uses as much as digits as its factorization.

224340905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44868186.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 224340905 is about 14978.0140539392. The cubic root of 224340905 is about 607.6257299873.

The spelling of 224340905 in words is "two hundred twenty-four million, three hundred forty thousand, nine hundred five".