223473920 has 72 divisors (see below), whose sum is σ = 543049920. Its totient is φ = 88094720.

The previous prime is 223473883. The next prime is 223473923. The reversal of 223473920 is 29374322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (223473923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89651 + ... + 92109.

It is an arithmetic number, because the mean of its divisors is an integer number (7542360).

Almost surely, 2^223473920 is an apocalyptic number.

223473920 is a gapful number since it is divisible by the number (20) 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 223473920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271524960).

223473920 is an abundant number, since it is smaller than the sum of its proper divisors (319576000).

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

223473920 is an equidigital number, since it uses as much as digits as its factorization.

223473920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 223473920 is about 14949.0441165982. The cubic root of 223473920 is about 606.8419786114.

The spelling of 223473920 in words is "two hundred twenty-three million, four hundred seventy-three thousand, nine hundred twenty".