30306204 has 24 divisors (see below), whose sum is σ = 78571920. Its totient is φ = 10102032.

The previous prime is 30306193. The next prime is 30306209. The reversal of 30306204 is 40260303.

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 (30306209) 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, 140199 + ... + 140414.

It is an arithmetic number, because the mean of its divisors is an integer number (3273830).

Almost surely, 2^30306204 is an apocalyptic number.

It is an amenable number.

30306204 is an abundant number, since it is smaller than the sum of its proper divisors (48265716).

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

30306204 is a wasteful number, since it uses less digits than its factorization.

30306204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280626 (or 280618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30306204 is about 5505.1070834272. The cubic root of 30306204 is about 311.7768374592.

Adding to 30306204 its reverse (40260303), we get a palindrome (70566507).

The spelling of 30306204 in words is "thirty million, three hundred six thousand, two hundred four".