30011712 has 56 divisors (see below), whose sum is σ = 80625696. Its totient is φ = 9850368.

The previous prime is 30011701. The next prime is 30011731. The reversal of 30011712 is 21711003.

It is a junction number, because it is equal to n+sod(n) for n = 30011691 and 30011700.

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 7 ways as a sum of consecutive naturals, for example, 11698 + ... + 14030.

Almost surely, 2^30011712 is an apocalyptic number.

30011712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40312848).

30011712 is an abundant number, since it is smaller than the sum of its proper divisors (50613984).

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

30011712 is a wasteful number, since it uses less digits than its factorization.

30011712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 30011712 is about 5478.2946251548. The cubic root of 30011712 is about 310.7636807869.

Adding to 30011712 its reverse (21711003), we get a palindrome (51722715).

The spelling of 30011712 in words is "thirty million, eleven thousand, seven hundred twelve".