30712116 has 24 divisors (see below), whose sum is σ = 73410624. Its totient is φ = 9987520.

The previous prime is 30712111. The next prime is 30712117. The reversal of 30712116 is 61121703.

It is a junction number, because it is equal to n+sod(n) for n = 30712092 and 30712101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30712111) 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 7 ways as a sum of consecutive naturals, for example, 30720 + ... + 31703.

It is an arithmetic number, because the mean of its divisors is an integer number (3058776).

Almost surely, 2^30712116 is an apocalyptic number.

It is an amenable number.

30712116 is an abundant number, since it is smaller than the sum of its proper divisors (42698508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30712116 is a wasteful number, since it uses less digits than its factorization.

30712116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62471 (or 62469 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 30712116 is about 5541.8513152195. The cubic root of 30712116 is about 313.1626166258.

Adding to 30712116 its reverse (61121703), we get a palindrome (91833819).

The spelling of 30712116 in words is "thirty million, seven hundred twelve thousand, one hundred sixteen".