223660560 has 160 divisors (see below), whose sum is σ = 722632320. Its totient is φ = 57176064.

The previous prime is 223660553. The next prime is 223660621. The reversal of 223660560 is 65066322.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 790179 + ... + 790461.

It is an arithmetic number, because the mean of its divisors is an integer number (4516452).

Almost surely, 2^223660560 is an apocalyptic number.

223660560 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 223660560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361316160).

223660560 is an abundant number, since it is smaller than the sum of its proper divisors (498971760).

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

223660560 is a wasteful number, since it uses less digits than its factorization.

223660560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 223660560 is about 14955.2853533458. The cubic root of 223660560 is about 607.0108715044.

The spelling of 223660560 in words is "two hundred twenty-three million, six hundred sixty thousand, five hundred sixty".