30027442 has 4 divisors (see below), whose sum is σ = 45041166. Its totient is φ = 15013720.

The previous prime is 30027421. The next prime is 30027449. The reversal of 30027442 is 24472003.

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

It can be written as a sum of positive squares in only one way, i.e., 20349121 + 9678321 = 4511^2 + 3111^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30027449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506859 + ... + 7506862.

Almost surely, 2^30027442 is an apocalyptic number.

30027442 is a deficient number, since it is larger than the sum of its proper divisors (15013724).

30027442 is a wasteful number, since it uses less digits than its factorization.

30027442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15013723.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 30027442 is about 5479.7301028427. The cubic root of 30027442 is about 310.8179646935.

Adding to 30027442 its reverse (24472003), we get a palindrome (54499445).

The spelling of 30027442 in words is "thirty million, twenty-seven thousand, four hundred forty-two".