223730312 has 48 divisors (see below), whose sum is σ = 458173440. Its totient is φ = 102368448.

The previous prime is 223730267. The next prime is 223730359. The reversal of 223730312 is 213037322.

223730312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171053 + ... + 172355.

It is an arithmetic number, because the mean of its divisors is an integer number (9545280).

Almost surely, 2^223730312 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 223730312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229086720).

223730312 is an abundant number, since it is smaller than the sum of its proper divisors (234443128).

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

223730312 is a wasteful number, since it uses less digits than its factorization.

223730312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 223730312 is about 14957.6171899136. The cubic root of 223730312 is about 607.0739668509.

Adding to 223730312 its reverse (213037322), we get a palindrome (436767634).

The spelling of 223730312 in words is "two hundred twenty-three million, seven hundred thirty thousand, three hundred twelve".