30680353 has 4 divisors (see below), whose sum is σ = 33469488. Its totient is φ = 27891220.

The previous prime is 30680333. The next prime is 30680357. The reversal of 30680353 is 35308603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30680353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30680357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394551 + ... + 1394572.

It is an arithmetic number, because the mean of its divisors is an integer number (8367372).

Almost surely, 2^30680353 is an apocalyptic number.

It is an amenable number.

30680353 is a deficient number, since it is larger than the sum of its proper divisors (2789135).

30680353 is a wasteful number, since it uses less digits than its factorization.

30680353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789134.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30680353 is about 5538.9848347870. The cubic root of 30680353 is about 313.0546199937.

Adding to 30680353 its reverse (35308603), we get a palindrome (65988956).

The spelling of 30680353 in words is "thirty million, six hundred eighty thousand, three hundred fifty-three".