30071018 has 8 divisors (see below), whose sum is σ = 46155648. Its totient is φ = 14685804.

The previous prime is 30071017. The next prime is 30071059. The reversal of 30071018 is 81017003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30071018² = 1808532247112648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30071017) 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, 174746 + ... + 174917.

It is an arithmetic number, because the mean of its divisors is an integer number (5769456).

Almost surely, 2^30071018 is an apocalyptic number.

30071018 is a deficient number, since it is larger than the sum of its proper divisors (16084630).

30071018 is a wasteful number, since it uses less digits than its factorization.

30071018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349708.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 30071018 is about 5483.7047695878. The cubic root of 30071018 is about 310.9682456387.

The spelling of 30071018 in words is "thirty million, seventy-one thousand, eighteen".