30709116 has 18 divisors (see below), whose sum is σ = 77625912. Its totient is φ = 10236360.

The previous prime is 30709109. The next prime is 30709121. The reversal of 30709116 is 61190703.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 30709116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 426480 + ... + 426551.

Almost surely, 2^30709116 is an apocalyptic number.

30709116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30709116 is an abundant number, since it is smaller than the sum of its proper divisors (46916796).

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

30709116 is a wasteful number, since it uses less digits than its factorization.

30709116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853041 (or 853036 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 30709116 is about 5541.5806409363. The cubic root of 30709116 is about 313.1524195812.

Adding to 30709116 its reverse (61190703), we get a palindrome (91899819).

The spelling of 30709116 in words is "thirty million, seven hundred nine thousand, one hundred sixteen".