30043142 has 12 divisors (see below), whose sum is σ = 47562516. Its totient is φ = 14230620.

The previous prime is 30043099. The next prime is 30043163. The reversal of 30043142 is 24134003.

It is a self number, because there is not a number n which added to its sum of digits gives 30043142.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20084 + ... + 21527.

It is an arithmetic number, because the mean of its divisors is an integer number (3963543).

Almost surely, 2^30043142 is an apocalyptic number.

30043142 is a deficient number, since it is larger than the sum of its proper divisors (17519374).

30043142 is a wasteful number, since it uses less digits than its factorization.

30043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41651 (or 41632 counting only the distinct ones).

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

The square root of 30043142 is about 5481.1624679442. The cubic root of 30043142 is about 310.8721261703.

Adding to 30043142 its reverse (24134003), we get a palindrome (54177145).

The spelling of 30043142 in words is "thirty million, forty-three thousand, one hundred forty-two".