223662644 has 24 divisors (see below), whose sum is σ = 404640768. Its totient is φ = 108061920.

The previous prime is 223662643. The next prime is 223662679. The reversal of 223662644 is 446266322.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223662643) 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 7 ways as a sum of consecutive naturals, for example, 149669 + ... + 151155.

It is an arithmetic number, because the mean of its divisors is an integer number (16860032).

Almost surely, 2^223662644 is an apocalyptic number.

It is an amenable number.

223662644 is a deficient number, since it is larger than the sum of its proper divisors (180978124).

223662644 is a wasteful number, since it uses less digits than its factorization.

223662644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735 (or 2733 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 223662644 is about 14955.3550275478. The cubic root of 223662644 is about 607.0127568118.

The spelling of 223662644 in words is "two hundred twenty-three million, six hundred sixty-two thousand, six hundred forty-four".