223568284840 has 24 divisors (see below), whose sum is σ = 503035369470. Its totient is φ = 89426117760.

The previous prime is 223568284811. The next prime is 223568284859. The reversal of 223568284840 is 48482865322.

It can be written as a sum of positive squares in 3 ways, for example, as 135714139236 + 87854145604 = 368394^2 + 296402^2 .

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 5 ways as a sum of consecutive naturals, for example, 2953060 + ... + 3027820.

Almost surely, 2^223568284840 is an apocalyptic number.

223568284840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223568284840 is an abundant number, since it is smaller than the sum of its proper divisors (279467084630).

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

223568284840 is an frugal number, since it uses more digits than its factorization.

223568284840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149533 (or 74768 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 52.

The spelling of 223568284840 in words is "two hundred twenty-three billion, five hundred sixty-eight million, two hundred eighty-four thousand, eight hundred forty".