30313206 has 48 divisors (see below), whose sum is σ = 81888768. Its totient is φ = 7873200.

The previous prime is 30313201. The next prime is 30313219. The reversal of 30313206 is 60231303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9550 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (1706016).

Almost surely, 2^30313206 is an apocalyptic number.

30313206 is an abundant number, since it is smaller than the sum of its proper divisors (51575562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30313206 is a wasteful number, since it uses less digits than its factorization.

30313206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21897 (or 21894 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 30313206 is about 5505.7430016302. The cubic root of 30313206 is about 311.8008467711.

Adding to 30313206 its reverse (60231303), we get a palindrome (90544509).

It can be divided in two parts, 30 and 313206, that added together give a triangular number (313236 = T₇₉₁).

The spelling of 30313206 in words is "thirty million, three hundred thirteen thousand, two hundred six".