223897742 has 8 divisors (see below), whose sum is σ = 336407232. Its totient is φ = 111762000.

The previous prime is 223897741. The next prime is 223897747. The reversal of 223897742 is 247798322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 223897693 and 223897702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223897741) 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 3 ways as a sum of consecutive naturals, for example, 91934 + ... + 94337.

It is an arithmetic number, because the mean of its divisors is an integer number (42050904).

Almost surely, 2^223897742 is an apocalyptic number.

223897742 is a deficient number, since it is larger than the sum of its proper divisors (112509490).

223897742 is a wasteful number, since it uses less digits than its factorization.

223897742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186874.

The product of its digits is 338688, while the sum is 44.

The square root of 223897742 is about 14963.2129571159. The cubic root of 223897742 is about 607.2253649769.

The spelling of 223897742 in words is "two hundred twenty-three million, eight hundred ninety-seven thousand, seven hundred forty-two".