223955628 has 24 divisors (see below), whose sum is σ = 562760688. Its totient is φ = 68909376.

The previous prime is 223955621. The next prime is 223955647. The reversal of 223955628 is 826559322.

223955628 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-2 number, since 2×223955628² = 100312246625748768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223955628.

It is not an unprimeable number, because it can be changed into a prime (223955621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717651 + ... + 717962.

It is an arithmetic number, because the mean of its divisors is an integer number (23448362).

Almost surely, 2^223955628 is an apocalyptic number.

It is an amenable number.

223955628 is an abundant number, since it is smaller than the sum of its proper divisors (338805060).

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

223955628 is a wasteful number, since it uses less digits than its factorization.

223955628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435633 (or 1435631 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 223955628 is about 14965.1471092001. The cubic root of 223955628 is about 607.2776906776.

The spelling of 223955628 in words is "two hundred twenty-three million, nine hundred fifty-five thousand, six hundred twenty-eight".