223809404 has 36 divisors (see below), whose sum is σ = 484709904. Its totient is φ = 88538112.

The previous prime is 223809401. The next prime is 223809409. The reversal of 223809404 is 404908322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223809401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18917 + ... + 28380.

It is an arithmetic number, because the mean of its divisors is an integer number (13464164).

Almost surely, 2^223809404 is an apocalyptic number.

It is an amenable number.

223809404 is an abundant number, since it is smaller than the sum of its proper divisors (260900500).

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

223809404 is a wasteful number, since it uses less digits than its factorization.

223809404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47334 (or 47319 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 223809404 is about 14960.2608266033. The cubic root of 223809404 is about 607.1454949880.

The spelling of 223809404 in words is "two hundred twenty-three million, eight hundred nine thousand, four hundred four".