30042206 has 4 divisors (see below), whose sum is σ = 45063312. Its totient is φ = 15021102.

The previous prime is 30042203. The next prime is 30042223. The reversal of 30042206 is 60224003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60224003 = 7 ⋅8603429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30042203) 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, 7510550 + ... + 7510553.

It is an arithmetic number, because the mean of its divisors is an integer number (11265828).

Almost surely, 2^30042206 is an apocalyptic number.

30042206 is a deficient number, since it is larger than the sum of its proper divisors (15021106).

30042206 is a wasteful number, since it uses less digits than its factorization.

30042206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15021105.

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

The square root of 30042206 is about 5481.0770839316. The cubic root of 30042206 is about 310.8688977093.

Adding to 30042206 its reverse (60224003), we get a palindrome (90266209).

The spelling of 30042206 in words is "thirty million, forty-two thousand, two hundred six".