30820433 has 16 divisors (see below), whose sum is σ = 36247680. Its totient is φ = 25660800.

The previous prime is 30820421. The next prime is 30820441. The reversal of 30820433 is 33402803.

It is a cyclic number.

It is not a de Polignac number, because 30820433 - 2⁶ = 30820369 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30820399 and 30820408.

It is not an unprimeable number, because it can be changed into a prime (30820463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37598 + ... + 38408.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^30820433 is an apocalyptic number.

It is an amenable number.

30820433 is a deficient number, since it is larger than the sum of its proper divisors (5427247).

30820433 is an equidigital number, since it uses as much as digits as its factorization.

30820433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30820433 is about 5551.6153505084. The cubic root of 30820433 is about 313.5303437600.

The spelling of 30820433 in words is "thirty million, eight hundred twenty thousand, four hundred thirty-three".