223974438 has 8 divisors (see below), whose sum is σ = 447948888. Its totient is φ = 74658144.

The previous prime is 223974419. The next prime is 223974467. The reversal of 223974438 is 834479322.

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

223974438 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 223974438.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 18664531 + ... + 18664542.

It is an arithmetic number, because the mean of its divisors is an integer number (55993611).

Almost surely, 2^223974438 is an apocalyptic number.

223974438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

223974438 is a wasteful number, since it uses less digits than its factorization.

223974438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329078.

The product of its digits is 290304, while the sum is 42.

The square root of 223974438 is about 14965.7755562483. The cubic root of 223974438 is about 607.2946919227.

The spelling of 223974438 in words is "two hundred twenty-three million, nine hundred seventy-four thousand, four hundred thirty-eight".