223420560 has 80 divisors (see below), whose sum is σ = 755576640. Its totient is φ = 54161920.

The previous prime is 223420543. The next prime is 223420567. The reversal of 223420560 is 65024322.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 223420560.

It is not an unprimeable number, because it can be changed into a prime (223420567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39675 + ... + 44954.

It is an arithmetic number, because the mean of its divisors is an integer number (9444708).

Almost surely, 2^223420560 is an apocalyptic number.

223420560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223420560 is an abundant number, since it is smaller than the sum of its proper divisors (532156080).

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

223420560 is a wasteful number, since it uses less digits than its factorization.

223420560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84656 (or 84650 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 223420560 is about 14947.2592805504. The cubic root of 223420560 is about 606.7936751888.

Adding to 223420560 its reverse (65024322), we get a palindrome (288444882).

The spelling of 223420560 in words is "two hundred twenty-three million, four hundred twenty thousand, five hundred sixty".