30918068 has 12 divisors (see below), whose sum is σ = 54603780. Its totient is φ = 15316992.

The previous prime is 30918061. The next prime is 30918077. The reversal of 30918068 is 86081903.

It can be written as a sum of positive squares in 2 ways, for example, as 19166884 + 11751184 = 4378^2 + 3428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30918061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35021 + ... + 35892.

It is an arithmetic number, because the mean of its divisors is an integer number (4550315).

Almost surely, 2^30918068 is an apocalyptic number.

It is an amenable number.

30918068 is a deficient number, since it is larger than the sum of its proper divisors (23685712).

30918068 is a wasteful number, since it uses less digits than its factorization.

30918068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71026 (or 71024 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 30918068 is about 5560.4017840440. The cubic root of 30918068 is about 313.8610688071.

The spelling of 30918068 in words is "thirty million, nine hundred eighteen thousand, sixty-eight".