223146672 has 80 divisors (see below), whose sum is σ = 660529152. Its totient is φ = 63590400.

The previous prime is 223146661. The next prime is 223146691. The reversal of 223146672 is 276641322.

223146672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223146672³ (a number of 26 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193297 + ... + 194447.

Almost surely, 2^223146672 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 223146672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330264576).

223146672 is an abundant number, since it is smaller than the sum of its proper divisors (437382480).

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

223146672 is a wasteful number, since it uses less digits than its factorization.

223146672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1740 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 223146672 is about 14938.0946576195. The cubic root of 223146672 is about 606.5456206323.

Adding to 223146672 its reverse (276641322), we get a palindrome (499787994).

The spelling of 223146672 in words is "two hundred twenty-three million, one hundred forty-six thousand, six hundred seventy-two".