30709912 has 16 divisors (see below), whose sum is σ = 58920840. Its totient is φ = 14997696.

The previous prime is 30709883. The next prime is 30709969. The reversal of 30709912 is 21990703.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44293 + ... + 44980.

Almost surely, 2^30709912 is an apocalyptic number.

It is an amenable number.

30709912 is a deficient number, since it is larger than the sum of its proper divisors (28210928).

30709912 is a wasteful number, since it uses less digits than its factorization.

30709912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89322 (or 89318 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 30709912 is about 5541.6524611347. The cubic root of 30709912 is about 313.1551252618.

The spelling of 30709912 in words is "thirty million, seven hundred nine thousand, nine hundred twelve".