30730306 has 8 divisors (see below), whose sum is σ = 46151820. Its totient is φ = 15346368.

The previous prime is 30730283. The next prime is 30730309. The reversal of 30730306 is 60303703.

It can be written as a sum of positive squares in 2 ways, for example, as 28355625 + 2374681 = 5325^2 + 1541^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30730309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7251 + ... + 10678.

Almost surely, 2^30730306 is an apocalyptic number.

30730306 is a deficient number, since it is larger than the sum of its proper divisors (15421514).

30730306 is a wasteful number, since it uses less digits than its factorization.

30730306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18788.

The product of its (nonzero) digits is 1134, while the sum is 22.

The square root of 30730306 is about 5543.4922206133. The cubic root of 30730306 is about 313.2244304905.

The spelling of 30730306 in words is "thirty million, seven hundred thirty thousand, three hundred six".