223388672 has 88 divisors (see below), whose sum is σ = 488676216. Its totient is φ = 101449728.

The previous prime is 223388663. The next prime is 223388677. The reversal of 223388672 is 276883322.

It can be written as a sum of positive squares in 4 ways, for example, as 35808256 + 187580416 = 5984^2 + 13696^2 .

It is not an unprimeable number, because it can be changed into a prime (223388677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291178 + ... + 1291350.

Almost surely, 2^223388672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223388672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244338108).

223388672 is an abundant number, since it is smaller than the sum of its proper divisors (265287544).

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

223388672 is a wasteful number, since it uses less digits than its factorization.

223388672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 285 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 223388672 is about 14946.1925586418. The cubic root of 223388672 is about 606.7648053341.

The spelling of 223388672 in words is "two hundred twenty-three million, three hundred eighty-eight thousand, six hundred seventy-two".