306000000018 has 40 divisors (see below), whose sum is σ = 698603793228. Its totient is φ = 100075468896.

The previous prime is 306000000001. The next prime is 306000000029. The reversal of 306000000018 is 810000000603.

It can be written as a sum of positive squares in 2 ways, for example, as 286345922769 + 19654077249 = 535113^2 + 140193^2 .

It is a super-2 number, since 2×306000000018² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17811121 + ... + 17828292.

Almost surely, 2^306000000018 is an apocalyptic number.

306000000018 is an abundant number, since it is smaller than the sum of its proper divisors (392603793210).

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

306000000018 is a wasteful number, since it uses less digits than its factorization.

306000000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35639480 (or 35639471 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 306000000018 in words is "three hundred six billion, eighteen", and thus it is an aban number.