30166939 has 8 divisors (see below), whose sum is σ = 33712560. Its totient is φ = 26755200.

The previous prime is 30166933. The next prime is 30166943. The reversal of 30166939 is 93966103.

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

It is a cyclic number.

It is not a de Polignac number, because 30166939 - 2⁹ = 30166427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30166898 and 30166907.

It is not an unprimeable number, because it can be changed into a prime (30166933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32994 + ... + 33895.

It is an arithmetic number, because the mean of its divisors is an integer number (4214070).

Almost surely, 2^30166939 is an apocalyptic number.

30166939 is a deficient number, since it is larger than the sum of its proper divisors (3545621).

30166939 is a wasteful number, since it uses less digits than its factorization.

30166939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66941.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 30166939 is about 5492.4438094531. The cubic root of 30166939 is about 311.2985384751.

The spelling of 30166939 in words is "thirty million, one hundred sixty-six thousand, nine hundred thirty-nine".