30120306 has 16 divisors (see below), whose sum is σ = 60702048. Its totient is φ = 9963200.

The previous prime is 30120289. The next prime is 30120323. The reversal of 30120306 is 60302103.

It is an interprime number because it is at equal distance from previous prime (30120289) and next prime (30120323).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18375 + ... + 19946.

It is an arithmetic number, because the mean of its divisors is an integer number (3793878).

Almost surely, 2^30120306 is an apocalyptic number.

30120306 is an abundant number, since it is smaller than the sum of its proper divisors (30581742).

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

30120306 is a wasteful number, since it uses less digits than its factorization.

30120306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38457.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30120306 is about 5488.1969716839. The cubic root of 30120306 is about 311.1380507379.

Adding to 30120306 its reverse (60302103), we get a palindrome (90422409).

The spelling of 30120306 in words is "thirty million, one hundred twenty thousand, three hundred six".