223979808 has 48 divisors (see below), whose sum is σ = 633177216. Its totient is φ = 68916480.

The previous prime is 223979807. The next prime is 223979827. The reversal of 223979808 is 808979322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (223979807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88488 + ... + 90983.

It is an arithmetic number, because the mean of its divisors is an integer number (13191192).

Almost surely, 2^223979808 is an apocalyptic number.

It is an amenable number.

223979808 is an abundant number, since it is smaller than the sum of its proper divisors (409197408).

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

223979808 is a wasteful number, since it uses less digits than its factorization.

223979808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179497 (or 179489 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 223979808 is about 14965.9549645186. The cubic root of 223979808 is about 607.2995453731.

The spelling of 223979808 in words is "two hundred twenty-three million, nine hundred seventy-nine thousand, eight hundred eight".