16224660 has 72 divisors (see below), whose sum is σ = 51367680. Its totient is φ = 4137408.

The previous prime is 16224641. The next prime is 16224671. The reversal of 16224660 is 6642261.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2181 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (713440).

Almost surely, 2^16224660 is an apocalyptic number.

16224660 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 16224660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25683840).

16224660 is an abundant number, since it is smaller than the sum of its proper divisors (35143020).

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

16224660 is a wasteful number, since it uses less digits than its factorization.

16224660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 16224660 is about 4027.9846077164. The cubic root of 16224660 is about 253.1581236945.

It can be divided in two parts, 16 and 224660, that added together give a square (224676 = 474²).

The spelling of 16224660 in words is "sixteen million, two hundred twenty-four thousand, six hundred sixty".