223935816 has 128 divisors (see below), whose sum is σ = 630604800. Its totient is φ = 66193920.

The previous prime is 223935799. The next prime is 223935823. The reversal of 223935816 is 618539322.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (77760) is a multiple of the sum of its prime factors (216).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1634500 + ... + 1634636.

It is an arithmetic number, because the mean of its divisors is an integer number (4926600).

Almost surely, 2^223935816 is an apocalyptic number.

223935816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223935816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315302400).

223935816 is an abundant number, since it is smaller than the sum of its proper divisors (406668984).

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

223935816 is a wasteful number, since it uses less digits than its factorization.

223935816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 186 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 223935816 is about 14964.4851565298. The cubic root of 223935816 is about 607.2597827546.

The spelling of 223935816 in words is "two hundred twenty-three million, nine hundred thirty-five thousand, eight hundred sixteen".