223688442 has 16 divisors (see below), whose sum is σ = 447557760. Its totient is φ = 74532672.

The previous prime is 223688441. The next prime is 223688503. The reversal of 223688442 is 244886322.

It is a self number, because there is not a number n which added to its sum of digits gives 223688442.

It is not an unprimeable number, because it can be changed into a prime (223688441) 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 7 ways as a sum of consecutive naturals, for example, 12738 + ... + 24690.

It is an arithmetic number, because the mean of its divisors is an integer number (27972360).

Almost surely, 2^223688442 is an apocalyptic number.

223688442 is an abundant number, since it is smaller than the sum of its proper divisors (223869318).

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

223688442 is a wasteful number, since it uses less digits than its factorization.

223688442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077.

The product of its digits is 147456, while the sum is 39.

The square root of 223688442 is about 14956.2175030988. The cubic root of 223688442 is about 607.0360942107.

The spelling of 223688442 in words is "two hundred twenty-three million, six hundred eighty-eight thousand, four hundred forty-two".