30706081 has 16 divisors (see below), whose sum is σ = 36806400. Its totient is φ = 25046208.

The previous prime is 30706079. The next prime is 30706129. The reversal of 30706081 is 18060703.

It is a cyclic number.

It is not a de Polignac number, because 30706081 - 2¹ = 30706079 is a prime.

It is a super-2 number, since 2×30706081² = 1885726820757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30706061) 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, 42955 + ... + 43663.

It is an arithmetic number, because the mean of its divisors is an integer number (2300400).

Almost surely, 2^30706081 is an apocalyptic number.

It is an amenable number.

30706081 is a deficient number, since it is larger than the sum of its proper divisors (6100319).

30706081 is a wasteful number, since it uses less digits than its factorization.

30706081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 30706081 is about 5541.3067953327. The cubic root of 30706081 is about 313.1421028954.

Adding to 30706081 its reverse (18060703), we get a palindrome (48766784).

The spelling of 30706081 in words is "thirty million, seven hundred six thousand, eighty-one".