30680433 has 12 divisors (see below), whose sum is σ = 50647168. Its totient is φ = 17531640.

The previous prime is 30680417. The next prime is 30680471. The reversal of 30680433 is 33408603.

It is not a de Polignac number, because 30680433 - 2⁴ = 30680417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30680397 and 30680406.

It is not an unprimeable number, because it can be changed into a prime (30680473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243433 + ... + 243558.

Almost surely, 2^30680433 is an apocalyptic number.

It is an amenable number.

30680433 is a deficient number, since it is larger than the sum of its proper divisors (19966735).

30680433 is a wasteful number, since it uses less digits than its factorization.

30680433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487004 (or 487001 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30680433 is about 5538.9920563222. The cubic root of 30680433 is about 313.0548920934.

It can be divided in two parts, 30680 and 433, that added together give a palindrome (31113).

The spelling of 30680433 in words is "thirty million, six hundred eighty thousand, four hundred thirty-three".