30016224 has 144 divisors (see below), whose sum is σ = 101984400. Its totient is φ = 8563968.

The previous prime is 30016211. The next prime is 30016241. The reversal of 30016224 is 42261003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30016197 and 30016206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41982 + ... + 42690.

It is an arithmetic number, because the mean of its divisors is an integer number (708225).

Almost surely, 2^30016224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30016224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50992200).

30016224 is an abundant number, since it is smaller than the sum of its proper divisors (71968176).

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

30016224 is a wasteful number, since it uses less digits than its factorization.

30016224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30016224 is about 5478.7064166644. The cubic root of 30016224 is about 310.7792535458.

Adding to 30016224 its reverse (42261003), we get a palindrome (72277227).

The spelling of 30016224 in words is "thirty million, sixteen thousand, two hundred twenty-four".