223505738 has 4 divisors (see below), whose sum is σ = 335258610. Its totient is φ = 111752868.

The previous prime is 223505713. The next prime is 223505761. The reversal of 223505738 is 837505322.

223505738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837505322 = 2 ⋅418752661.

It can be written as a sum of positive squares in only one way, i.e., 135652609 + 87853129 = 11647^2 + 9373^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223505698 and 223505707.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55876433 + ... + 55876436.

Almost surely, 2^223505738 is an apocalyptic number.

223505738 is a deficient number, since it is larger than the sum of its proper divisors (111752872).

223505738 is a wasteful number, since it uses less digits than its factorization.

223505738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111752871.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 223505738 is about 14950.1082939222. The cubic root of 223505738 is about 606.8707777688.

The spelling of 223505738 in words is "two hundred twenty-three million, five hundred five thousand, seven hundred thirty-eight".