223409240 has 32 divisors (see below), whose sum is σ = 532241280. Its totient is φ = 84106752.

The previous prime is 223409231. The next prime is 223409269. The reversal of 223409240 is 42904322.

223409240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 163592 + ... + 164951.

It is an arithmetic number, because the mean of its divisors is an integer number (16632540).

Almost surely, 2^223409240 is an apocalyptic number.

223409240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223409240 is an abundant number, since it is smaller than the sum of its proper divisors (308832040).

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

223409240 is a wasteful number, since it uses less digits than its factorization.

223409240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328571 (or 328567 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 223409240 is about 14946.8806110171. The cubic root of 223409240 is about 606.7834269222.

The spelling of 223409240 in words is "two hundred twenty-three million, four hundred nine thousand, two hundred forty".