30140612 has 18 divisors (see below), whose sum is σ = 55670958. Its totient is φ = 14276448.

The previous prime is 30140569. The next prime is 30140629. The reversal of 30140612 is 21604103.

It can be written as a sum of positive squares in only one way, i.e., 23658496 + 6482116 = 4864^2 + 2546^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8993 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (3092831).

Almost surely, 2^30140612 is an apocalyptic number.

It is an amenable number.

30140612 is a deficient number, since it is larger than the sum of its proper divisors (25530346).

30140612 is a wasteful number, since it uses less digits than its factorization.

30140612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20915 (or 20894 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30140612 is about 5490.0466300388. The cubic root of 30140612 is about 311.2079542996.

Adding to 30140612 its reverse (21604103), we get a palindrome (51744715).

The spelling of 30140612 in words is "thirty million, one hundred forty thousand, six hundred twelve".