223890644 has 12 divisors (see below), whose sum is σ = 391923168. Its totient is φ = 111912600.

The previous prime is 223890631. The next prime is 223890673. The reversal of 223890644 is 446098322.

It is a happy number.

223890644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 223890598 and 223890607.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13739 + ... + 25229.

It is an arithmetic number, because the mean of its divisors is an integer number (32660264).

Almost surely, 2^223890644 is an apocalyptic number.

It is an amenable number.

223890644 is a deficient number, since it is larger than the sum of its proper divisors (168032524).

223890644 is a wasteful number, since it uses less digits than its factorization.

223890644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366 (or 16364 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 223890644 is about 14962.9757735552. The cubic root of 223890644 is about 607.2189481619.

The spelling of 223890644 in words is "two hundred twenty-three million, eight hundred ninety thousand, six hundred forty-four".