224865839 has 4 divisors (see below), whose sum is σ = 245308200. Its totient is φ = 204423480.

The previous prime is 224865833. The next prime is 224865859. The reversal of 224865839 is 938568422.

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

It is a cyclic number.

It is not a de Polignac number, because 224865839 - 2¹² = 224861743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224865793 and 224865802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224865833) by changing a digit.

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, 10221164 + ... + 10221185.

It is an arithmetic number, because the mean of its divisors is an integer number (61327050).

Almost surely, 2^224865839 is an apocalyptic number.

224865839 is a deficient number, since it is larger than the sum of its proper divisors (20442361).

224865839 is a wasteful number, since it uses less digits than its factorization.

224865839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20442360.

The product of its digits is 829440, while the sum is 47.

The square root of 224865839 is about 14995.5272998318. The cubic root of 224865839 is about 608.0992874773.

The spelling of 224865839 in words is "two hundred twenty-four million, eight hundred sixty-five thousand, eight hundred thirty-nine".