223276144 has 120 divisors (see below), whose sum is σ = 570953040. Its totient is φ = 83607552.

The previous prime is 223276139. The next prime is 223276159. The reversal of 223276144 is 441672322.

It is a happy number.

It is a super-3 number, since 3×223276144³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193072 + ... + 194224.

It is an arithmetic number, because the mean of its divisors is an integer number (4757942).

Almost surely, 2^223276144 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 223276144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285476520).

223276144 is an abundant number, since it is smaller than the sum of its proper divisors (347676896).

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

223276144 is a wasteful number, since it uses less digits than its factorization.

223276144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1194 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 223276144 is about 14942.4276474742. The cubic root of 223276144 is about 606.6629059596.

The spelling of 223276144 in words is "two hundred twenty-three million, two hundred seventy-six thousand, one hundred forty-four".