30205042 has 8 divisors (see below), whose sum is σ = 51780096. Its totient is φ = 12945012.

The previous prime is 30205031. The next prime is 30205051. The reversal of 30205042 is 24050203.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1078738 + ... + 1078765.

It is an arithmetic number, because the mean of its divisors is an integer number (6472512).

Almost surely, 2^30205042 is an apocalyptic number.

30205042 is a deficient number, since it is larger than the sum of its proper divisors (21575054).

30205042 is a wasteful number, since it uses less digits than its factorization.

30205042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157512.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30205042 is about 5495.9113893876. The cubic root of 30205042 is about 311.4295474336.

Adding to 30205042 its reverse (24050203), we get a palindrome (54255245).

The spelling of 30205042 in words is "thirty million, two hundred five thousand, forty-two".