30840068 has 12 divisors (see below), whose sum is σ = 61680192. Its totient is φ = 13217160.

The previous prime is 30840053. The next prime is 30840101. The reversal of 30840068 is 86004803.

30840068 is an admirable number.

It is a super-2 number, since 2×30840068² = 1902219588489248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30840068.

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 3 ways as a sum of consecutive naturals, for example, 550688 + ... + 550743.

It is an arithmetic number, because the mean of its divisors is an integer number (5140016).

Almost surely, 2^30840068 is an apocalyptic number.

It is an amenable number.

30840068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30840068 is a wasteful number, since it uses less digits than its factorization.

30840068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101442 (or 1101440 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 30840068 is about 5553.3834731630. The cubic root of 30840068 is about 313.5969106535.

The spelling of 30840068 in words is "thirty million, eight hundred forty thousand, sixty-eight".