30934386 has 84 divisors (see below), whose sum is σ = 81115902. Its totient is φ = 8817984.

The previous prime is 30934357. The next prime is 30934391. The reversal of 30934386 is 68343903.

30934386 is a `hidden beast` number, since 309 + 343 + 8 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 893025 = 5481^2 + 945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30934386.

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 41 ways as a sum of consecutive naturals, for example, 71226 + ... + 71658.

Almost surely, 2^30934386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30934386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40557951).

30934386 is an abundant number, since it is smaller than the sum of its proper divisors (50181516).

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

30934386 is an equidigital number, since it uses as much as digits as its factorization.

30934386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 30934386 is about 5561.8689304945. The cubic root of 30934386 is about 313.9162758375.

The spelling of 30934386 in words is "thirty million, nine hundred thirty-four thousand, three hundred eighty-six".