223721088 has 128 divisors (see below), whose sum is σ = 644656320. Its totient is φ = 68468736.

The previous prime is 223721087. The next prime is 223721089. The reversal of 223721088 is 880127322.

It is an interprime number because it is at equal distance from previous prime (223721087) and next prime (223721089).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×223721088² = 100102250431807488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223721087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280306 + ... + 281102.

Almost surely, 2^223721088 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 223721088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322328160).

223721088 is an abundant number, since it is smaller than the sum of its proper divisors (420935232).

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

223721088 is a wasteful number, since it uses less digits than its factorization.

223721088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 223721088 is about 14957.3088488538. The cubic root of 223721088 is about 607.0656238788.

The spelling of 223721088 in words is "two hundred twenty-three million, seven hundred twenty-one thousand, eighty-eight".