30221443 has 8 divisors (see below), whose sum is σ = 34588512. Its totient is φ = 25866816.

The previous prime is 30221441. The next prime is 30221447. The reversal of 30221443 is 34412203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30221443 - 2¹ = 30221441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30221443.

It is not an unprimeable number, because it can be changed into a prime (30221441) 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 7 ways as a sum of consecutive naturals, for example, 2871 + ... + 8287.

It is an arithmetic number, because the mean of its divisors is an integer number (4323564).

Almost surely, 2^30221443 is an apocalyptic number.

30221443 is a deficient number, since it is larger than the sum of its proper divisors (4367069).

30221443 is an equidigital number, since it uses as much as digits as its factorization.

30221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30221443 is about 5497.4032961026. The cubic root of 30221443 is about 311.4859048215.

Adding to 30221443 its reverse (34412203), we get a palindrome (64633646).

It can be divided in two parts, 3022 and 1443, that added together give a triangular number (4465 = T₉₄).

The spelling of 30221443 in words is "thirty million, two hundred twenty-one thousand, four hundred forty-three".