223389738 has 80 divisors (see below), whose sum is σ = 588129696. Its totient is φ = 62480160.

The previous prime is 223389701. The next prime is 223389743. The reversal of 223389738 is 837983322.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 223389693 and 223389702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18345 + ... + 27987.

Almost surely, 2^223389738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223389738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294064848).

223389738 is an abundant number, since it is smaller than the sum of its proper divisors (364739958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223389738 is a wasteful number, since it uses less digits than its factorization.

223389738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9681 (or 9672 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 223389738 is about 14946.2282198553. The cubic root of 223389738 is about 606.7657704834.

The spelling of 223389738 in words is "two hundred twenty-three million, three hundred eighty-nine thousand, seven hundred thirty-eight".