30224321 has 4 divisors (see below), whose sum is σ = 30250452. Its totient is φ = 30198192.

The previous prime is 30224309. The next prime is 30224347. The reversal of 30224321 is 12342203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9394225 + 20830096 = 3065^2 + 4564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30224321 is a prime.

It is a super-2 number, since 2×30224321² = 1827019159822082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30224321.

It is not an unprimeable number, because it can be changed into a prime (30224371) 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, 11246 + ... + 13671.

It is an arithmetic number, because the mean of its divisors is an integer number (7562613).

Almost surely, 2^30224321 is an apocalyptic number.

It is an amenable number.

30224321 is a deficient number, since it is larger than the sum of its proper divisors (26131).

30224321 is a wasteful number, since it uses less digits than its factorization.

30224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26130.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30224321 is about 5497.6650498189. The cubic root of 30224321 is about 311.4957921497.

Adding to 30224321 its reverse (12342203), we get a palindrome (42566524).

The spelling of 30224321 in words is "thirty million, two hundred twenty-four thousand, three hundred twenty-one".