30124224 has 168 divisors, whose sum is σ = 97078800. Its totient is φ = 9206784.

The previous prime is 30124207. The next prime is 30124229. The reversal of 30124224 is 42242103.

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 = 30124197 and 30124206.

It is not an unprimeable number, because it can be changed into a prime (30124229) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 202102 + ... + 202250.

It is an arithmetic number, because the mean of its divisors is an integer number (577850).

Almost surely, 2^30124224 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 30124224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48539400).

30124224 is an abundant number, since it is smaller than the sum of its proper divisors (66954576).

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

30124224 is a wasteful number, since it uses less digits than its factorization.

30124224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30124224 is about 5488.5539079069. The cubic root of 30124224 is about 311.1515409287.

Adding to 30124224 its reverse (42242103), we get a palindrome (72366327).

The spelling of 30124224 in words is "thirty million, one hundred twenty-four thousand, two hundred twenty-four".