223235604 has 18 divisors (see below), whose sum is σ = 564290090. Its totient is φ = 74411856.

The previous prime is 223235603. The next prime is 223235627. The reversal of 223235604 is 406532322.

223235604 is a `hidden beast` number, since 2 + 23 + 2 + 35 + 604 = 666.

It can be written as a sum of positive squares in only one way, i.e., 182250000 + 40985604 = 13500^2 + 6402^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223235604³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223235603) 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 5 ways as a sum of consecutive naturals, for example, 3100459 + ... + 3100530.

Almost surely, 2^223235604 is an apocalyptic number.

It is an amenable number.

223235604 is an abundant number, since it is smaller than the sum of its proper divisors (341054486).

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

223235604 is a wasteful number, since it uses less digits than its factorization.

223235604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200999 (or 6200994 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 223235604 is about 14941.0710459458. The cubic root of 223235604 is about 606.6261867018.

Adding to 223235604 its reverse (406532322), we get a palindrome (629767926).

The spelling of 223235604 in words is "two hundred twenty-three million, two hundred thirty-five thousand, six hundred four".