223720842 has 16 divisors (see below), whose sum is σ = 447635232. Its totient is φ = 74541360.

The previous prime is 223720807. The next prime is 223720853. The reversal of 223720842 is 248027322.

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, 10117 + ... + 23447.

It is an arithmetic number, because the mean of its divisors is an integer number (27977202).

Almost surely, 2^223720842 is an apocalyptic number.

223720842 is an abundant number, since it is smaller than the sum of its proper divisors (223914390).

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

223720842 is a wasteful number, since it uses less digits than its factorization.

223720842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16133.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 223720842 is about 14957.3006254471. The cubic root of 223720842 is about 607.0654013723.

The spelling of 223720842 in words is "two hundred twenty-three million, seven hundred twenty thousand, eight hundred forty-two".