30316172 has 24 divisors (see below), whose sum is σ = 57360240. Its totient is φ = 13970880.

The previous prime is 30316141. The next prime is 30316177. The reversal of 30316172 is 27161303.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30316177) 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 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 8202.

It is an arithmetic number, because the mean of its divisors is an integer number (2390010).

Almost surely, 2^30316172 is an apocalyptic number.

It is an amenable number.

30316172 is a deficient number, since it is larger than the sum of its proper divisors (27044068).

30316172 is a wasteful number, since it uses less digits than its factorization.

30316172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10841 (or 10839 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 30316172 is about 5506.0123501496. The cubic root of 30316172 is about 311.8110158390.

Adding to 30316172 its reverse (27161303), we get a palindrome (57477475).

The spelling of 30316172 in words is "thirty million, three hundred sixteen thousand, one hundred seventy-two".