30072018 has 8 divisors (see below), whose sum is σ = 60144048. Its totient is φ = 10024004.

The previous prime is 30072013. The next prime is 30072023. The reversal of 30072018 is 81027003.

It is an interprime number because it is at equal distance from previous prime (30072013) and next prime (30072023).

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

30072018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30071985 and 30072003.

It is not an unprimeable number, because it can be changed into a prime (30072013) 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, 2505996 + ... + 2506007.

It is an arithmetic number, because the mean of its divisors is an integer number (7518006).

Almost surely, 2^30072018 is an apocalyptic number.

30072018 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.

30072018 is a wasteful number, since it uses less digits than its factorization.

30072018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012008.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 30072018 is about 5483.7959480637. The cubic root of 30072018 is about 310.9716926431.

The spelling of 30072018 in words is "thirty million, seventy-two thousand, eighteen".