223681936 has 15 divisors (see below), whose sum is σ = 433499691. Its totient is φ = 111811056.

The previous prime is 223681919. The next prime is 223681949. The reversal of 223681936 is 639186322.

The square root of 223681936 is 14956.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 57955 + ... + 61693.

Almost surely, 2^223681936 is an apocalyptic number.

223681936 is the 14956-th square number.

It is an amenable number.

223681936 is a deficient number, since it is larger than the sum of its proper divisors (209817755).

223681936 is an frugal number, since it uses more digits than its factorization.

223681936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486 (or 3741 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The cubic root of 223681936 is about 607.0302089192.

The spelling of 223681936 in words is "two hundred twenty-three million, six hundred eighty-one thousand, nine hundred thirty-six".