223493944 has 16 divisors (see below), whose sum is σ = 437271120. Its totient is φ = 106888320.

The previous prime is 223493869. The next prime is 223493957. The reversal of 223493944 is 449394322.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 223493897 and 223493906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607137 + ... + 607504.

It is an arithmetic number, because the mean of its divisors is an integer number (27329445).

Almost surely, 2^223493944 is an apocalyptic number.

It is an amenable number.

223493944 is a deficient number, since it is larger than the sum of its proper divisors (213777176).

223493944 is a wasteful number, since it uses less digits than its factorization.

223493944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214670 (or 1214666 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The square root of 223493944 is about 14949.7138434152. The cubic root of 223493944 is about 606.8601030841.

The spelling of 223493944 in words is "two hundred twenty-three million, four hundred ninety-three thousand, nine hundred forty-four".