30774912 has 96 divisors (see below), whose sum is σ = 94305120. Its totient is φ = 8710656.

The previous prime is 30774911. The next prime is 30774917. The reversal of 30774912 is 21947703.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (30774911) 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 11 ways as a sum of consecutive naturals, for example, 287563 + ... + 287669.

It is an arithmetic number, because the mean of its divisors is an integer number (982345).

Almost surely, 2^30774912 is an apocalyptic number.

30774912 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 30774912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47152560).

30774912 is an abundant number, since it is smaller than the sum of its proper divisors (63530208).

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

30774912 is an equidigital number, since it uses as much as digits as its factorization.

30774912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 30774912 is about 5547.5140378371. The cubic root of 30774912 is about 313.3759089070.

The spelling of 30774912 in words is "thirty million, seven hundred seventy-four thousand, nine hundred twelve".