30680534 has 8 divisors (see below), whose sum is σ = 46889280. Its totient is φ = 15050776.

The previous prime is 30680527. The next prime is 30680537. The reversal of 30680534 is 43508603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30680497 and 30680506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680537) 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 3 ways as a sum of consecutive naturals, for example, 144614 + ... + 144825.

It is an arithmetic number, because the mean of its divisors is an integer number (5861160).

Almost surely, 2^30680534 is an apocalyptic number.

30680534 is a deficient number, since it is larger than the sum of its proper divisors (16208746).

30680534 is a wasteful number, since it uses less digits than its factorization.

30680534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289494.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30680534 is about 5539.0011734969. The cubic root of 30680534 is about 313.0552356186.

The spelling of 30680534 in words is "thirty million, six hundred eighty thousand, five hundred thirty-four".