223809398 has 32 divisors (see below), whose sum is σ = 366551040. Its totient is φ = 102098880.

The previous prime is 223809353. The next prime is 223809401. The reversal of 223809398 is 893908322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368411 + ... + 369017.

It is an arithmetic number, because the mean of its divisors is an integer number (11454720).

Almost surely, 2^223809398 is an apocalyptic number.

223809398 is a deficient number, since it is larger than the sum of its proper divisors (142741642).

223809398 is a wasteful number, since it uses less digits than its factorization.

223809398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 223809398 is about 14960.2606260720. The cubic root of 223809398 is about 607.1454895625.

The spelling of 223809398 in words is "two hundred twenty-three million, eight hundred nine thousand, three hundred ninety-eight".