30280224 has 96 divisors (see below), whose sum is σ = 90175680. Its totient is φ = 8819712.

The previous prime is 30280223. The next prime is 30280241. The reversal of 30280224 is 42208203.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 30280224.

It is not an unprimeable number, because it can be changed into a prime (30280223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23074 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (939330).

Almost surely, 2^30280224 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 30280224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45087840).

30280224 is an abundant number, since it is smaller than the sum of its proper divisors (59895456).

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

30280224 is a wasteful number, since it uses less digits than its factorization.

30280224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30280224 is about 5502.7469503876. The cubic root of 30280224 is about 311.6877217355.

Adding to 30280224 its reverse (42208203), we get a palindrome (72488427).

The spelling of 30280224 in words is "thirty million, two hundred eighty thousand, two hundred twenty-four".