223481028 has 12 divisors (see below), whose sum is σ = 521455760. Its totient is φ = 74493672.

The previous prime is 223481023. The next prime is 223481029. The reversal of 223481028 is 820184322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 223480986 and 223481004.

It is not an unprimeable number, because it can be changed into a prime (223481023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9311698 + ... + 9311721.

Almost surely, 2^223481028 is an apocalyptic number.

It is an amenable number.

223481028 is an abundant number, since it is smaller than the sum of its proper divisors (297974732).

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

223481028 is a wasteful number, since it uses less digits than its factorization.

223481028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623426 (or 18623424 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 223481028 is about 14949.2818556612. The cubic root of 223481028 is about 606.8484124525.

The spelling of 223481028 in words is "two hundred twenty-three million, four hundred eighty-one thousand, twenty-eight".