30318912 has 84 divisors (see below), whose sum is σ = 93611700. Its totient is φ = 9326592.

The previous prime is 30318881. The next prime is 30318929. The reversal of 30318912 is 21981303.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 24443136 = 2424^2 + 4944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5464 + ... + 9512.

It is an arithmetic number, because the mean of its divisors is an integer number (1114425).

Almost surely, 2^30318912 is an apocalyptic number.

30318912 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 30318912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46805850).

30318912 is an abundant number, since it is smaller than the sum of its proper divisors (63292788).

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

30318912 is a wasteful number, since it uses less digits than its factorization.

30318912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 30318912 is about 5506.2611634393. The cubic root of 30318912 is about 311.8204094661.

The spelling of 30318912 in words is "thirty million, three hundred eighteen thousand, nine hundred twelve".