16223560 has 48 divisors (see below), whose sum is σ = 37451700. Its totient is φ = 6324480.

The previous prime is 16223551. The next prime is 16223609. The reversal of 16223560 is 6532261.

It can be written as a sum of positive squares in 6 ways, for example, as 715716 + 15507844 = 846^2 + 3938^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148786 + ... + 148894.

Almost surely, 2^16223560 is an apocalyptic number.

16223560 is a gapful number since it is divisible by the number (10) 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 16223560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18725850).

16223560 is an abundant number, since it is smaller than the sum of its proper divisors (21228140).

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

16223560 is a wasteful number, since it uses less digits than its factorization.

16223560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16223560 is about 4027.8480606895. The cubic root of 16223560 is about 253.1524023578.

The spelling of 16223560 in words is "sixteen million, two hundred twenty-three thousand, five hundred sixty".