223394478 has 16 divisors (see below), whose sum is σ = 456295680. Its totient is φ = 72880376.

The previous prime is 223394461. The next prime is 223394489. The reversal of 223394478 is 874493322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395808 + ... + 396371.

It is an arithmetic number, because the mean of its divisors is an integer number (28518480).

Almost surely, 2^223394478 is an apocalyptic number.

223394478 is an abundant number, since it is smaller than the sum of its proper divisors (232901202).

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

223394478 is a wasteful number, since it uses less digits than its factorization.

223394478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792231.

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

The square root of 223394478 is about 14946.3867874480. The cubic root of 223394478 is about 606.7700620106.

The spelling of 223394478 in words is "two hundred twenty-three million, three hundred ninety-four thousand, four hundred seventy-eight".