30020224 has 32 divisors (see below), whose sum is σ = 64409940. Its totient is φ = 13854720.

The previous prime is 30020213. The next prime is 30020227. The reversal of 30020224 is 42202003.

It can be written as a sum of positive squares in 2 ways, for example, as 23425600 + 6594624 = 4840^2 + 2568^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (30020227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7357 + ... + 10684.

Almost surely, 2^30020224 is an apocalyptic number.

It is an amenable number.

30020224 is an abundant number, since it is smaller than the sum of its proper divisors (34389716).

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

30020224 is a wasteful number, since it uses less digits than its factorization.

30020224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18068 (or 18056 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30020224 is about 5479.0714541791. The cubic root of 30020224 is about 310.7930578782.

Adding to 30020224 its reverse (42202003), we get a palindrome (72222227).

The spelling of 30020224 in words is "thirty million, twenty thousand, two hundred twenty-four".