223887418785424 has 45 divisors (see below), whose sum is σ = 444624842792091. Its totient is φ = 109212177987840.

The previous prime is 223887418785379. The next prime is 223887418785427. The reversal of 223887418785424 is 424587814788322.

The square root of 223887418785424 is 14962868.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 186163647872400 + 37723770913024 = 13644180^2 + 6141968^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223887418785427) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2453864734 + ... + 2453955970.

Almost surely, 2^{223887418785424} is an apocalyptic number.

223887418785424 is the 14962868-th square number.

It is an amenable number.

223887418785424 is a deficient number, since it is larger than the sum of its proper divisors (220737424006667).

223887418785424 is an frugal number, since it uses more digits than its factorization.

223887418785424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182564 (or 91280 counting only the distinct ones).

The product of its digits is 1541406720, while the sum is 73.

The spelling of 223887418785424 in words is "two hundred twenty-three trillion, eight hundred eighty-seven billion, four hundred eighteen million, seven hundred eighty-five thousand, four hundred twenty-four".