30306136 has 16 divisors (see below), whose sum is σ = 64941840. Its totient is φ = 12988320.

The previous prime is 30306047. The next prime is 30306149. The reversal of 30306136 is 63160303.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270535 + ... + 270646.

It is an arithmetic number, because the mean of its divisors is an integer number (4058865).

Almost surely, 2^30306136 is an apocalyptic number.

It is an amenable number.

30306136 is an abundant number, since it is smaller than the sum of its proper divisors (34635704).

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

30306136 is a wasteful number, since it uses less digits than its factorization.

30306136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541194 (or 541190 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 30306136 is about 5505.1009073404. The cubic root of 30306136 is about 311.7766042744.

Adding to 30306136 its reverse (63160303), we get a palindrome (93466439).

The spelling of 30306136 in words is "thirty million, three hundred six thousand, one hundred thirty-six".