224859861 has 16 divisors (see below), whose sum is σ = 334859520. Its totient is φ = 149126400.

The previous prime is 224859827. The next prime is 224859893. The reversal of 224859861 is 168958422.

224859861 is a `hidden beast` number, since 22 + 485 + 98 + 61 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-224859861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224859821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16365 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (20928720).

Almost surely, 2^224859861 is an apocalyptic number.

It is an amenable number.

224859861 is a deficient number, since it is larger than the sum of its proper divisors (109999659).

224859861 is a wasteful number, since it uses less digits than its factorization.

224859861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43353 (or 43347 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 224859861 is about 14995.3279724053. The cubic root of 224859861 is about 608.0938987089.

The spelling of 224859861 in words is "two hundred twenty-four million, eight hundred fifty-nine thousand, eight hundred sixty-one".