30305030 has 48 divisors (see below), whose sum is σ = 66238560. Its totient is φ = 9934848.

The previous prime is 30305017. The next prime is 30305039. The reversal of 30305030 is 3050303.

30305030 = 2751² + 2752² + ... + 2754².

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30304996 and 30305014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9926 + ... + 12614.

It is an arithmetic number, because the mean of its divisors is an integer number (1379970).

Almost surely, 2^30305030 is an apocalyptic number.

30305030 is an abundant number, since it is smaller than the sum of its proper divisors (35933530).

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

30305030 is a wasteful number, since it uses less digits than its factorization.

30305030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 14.

The square root of 30305030 is about 5505.0004541326. Note that the first 3 decimals coincide. The cubic root of 30305030 is about 311.7728115428.

Adding to 30305030 its reverse (3050303), we get a palindrome (33355333).

The spelling of 30305030 in words is "thirty million, three hundred five thousand, thirty".