30133730 has 16 divisors (see below), whose sum is σ = 59171904. Its totient is φ = 10957680.

The previous prime is 30133717. The next prime is 30133739. The reversal of 30133730 is 3733103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30133739) 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, 136862 + ... + 137081.

It is an arithmetic number, because the mean of its divisors is an integer number (3698244).

Almost surely, 2^30133730 is an apocalyptic number.

30133730 is a deficient number, since it is larger than the sum of its proper divisors (29038174).

30133730 is a wasteful number, since it uses less digits than its factorization.

30133730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273961.

The product of its (nonzero) digits is 567, while the sum is 20.

The square root of 30133730 is about 5489.4198236244. The cubic root of 30133730 is about 311.1842664797.

Adding to 30133730 its reverse (3733103), we get a palindrome (33866833).

The spelling of 30133730 in words is "thirty million, one hundred thirty-three thousand, seven hundred thirty".