30224520 has 96 divisors (see below), whose sum is σ = 99964800. Its totient is φ = 7917696.

The previous prime is 30224483. The next prime is 30224539. The reversal of 30224520 is 2542203.

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 = 30224493 and 30224502.

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, 20529 + ... + 21951.

It is an arithmetic number, because the mean of its divisors is an integer number (1041300).

Almost surely, 2^30224520 is an apocalyptic number.

30224520 is a gapful number since it is divisible by the number (30) 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 30224520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49982400).

30224520 is an abundant number, since it is smaller than the sum of its proper divisors (69740280).

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

30224520 is a wasteful number, since it uses less digits than its factorization.

30224520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30224520 is about 5497.6831483817. The cubic root of 30224520 is about 311.4964757882.

Adding to 30224520 its reverse (2542203), we get a palindrome (32766723).

The spelling of 30224520 in words is "thirty million, two hundred twenty-four thousand, five hundred twenty".