30320206 has 16 divisors (see below), whose sum is σ = 52077024. Its totient is φ = 12969504.

The previous prime is 30320183. The next prime is 30320207. The reversal of 30320206 is 60202303.

It is a self number, because there is not a number n which added to its sum of digits gives 30320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6816 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (3254814).

Almost surely, 2^30320206 is an apocalyptic number.

30320206 is a deficient number, since it is larger than the sum of its proper divisors (21756818).

30320206 is a wasteful number, since it uses less digits than its factorization.

30320206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30320206 is about 5506.3786647851. The cubic root of 30320206 is about 311.8248455298.

Adding to 30320206 its reverse (60202303), we get a palindrome (90522509).

The spelling of 30320206 in words is "thirty million, three hundred twenty thousand, two hundred six".