224851860 has 144 divisors (see below), whose sum is σ = 727783056. Its totient is φ = 55996416.

The previous prime is 224851813. The next prime is 224851889. The reversal of 224851860 is 68158422.

It can be written as a sum of positive squares in 8 ways, for example, as 37380996 + 187470864 = 6114^2 + 13692^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 602634 + ... + 603006.

It is an arithmetic number, because the mean of its divisors is an integer number (5054049).

Almost surely, 2^224851860 is an apocalyptic number.

224851860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224851860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363891528).

224851860 is an abundant number, since it is smaller than the sum of its proper divisors (502931196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224851860 is a wasteful number, since it uses less digits than its factorization.

224851860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 224851860 is about 14995.0611869375. The cubic root of 224851860 is about 608.0866861915.

The spelling of 224851860 in words is "two hundred twenty-four million, eight hundred fifty-one thousand, eight hundred sixty".