223532244 has 144 divisors (see below), whose sum is σ = 646443840. Its totient is φ = 66718080.

The previous prime is 223532191. The next prime is 223532251. The reversal of 223532244 is 442235322.

It is a happy number.

223532244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 675159 + ... + 675489.

Almost surely, 2^223532244 is an apocalyptic number.

223532244 is the 7992-nd nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223532244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323221920).

223532244 is an abundant number, since it is smaller than the sum of its proper divisors (422911596).

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

223532244 is a wasteful number, since it uses less digits than its factorization.

223532244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 386 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 223532244 is about 14950.9947495142. The cubic root of 223532244 is about 606.8947668337.

Adding to 223532244 its reverse (442235322), we get a palindrome (665767566).

The spelling of 223532244 in words is "two hundred twenty-three million, five hundred thirty-two thousand, two hundred forty-four".