30072066 has 8 divisors (see below), whose sum is σ = 60144144. Its totient is φ = 10024020.

The previous prime is 30072023. The next prime is 30072067. The reversal of 30072066 is 66027003.

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

30072066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30072067) 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, 2506000 + ... + 2506011.

It is an arithmetic number, because the mean of its divisors is an integer number (7518018).

Almost surely, 2^30072066 is an apocalyptic number.

30072066 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.

30072066 is a wasteful number, since it uses less digits than its factorization.

30072066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012016.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30072066 is about 5483.8003245924. The cubic root of 30072066 is about 310.9718580974.

Adding to 30072066 its reverse (66027003), we get a palindrome (96099069).

The spelling of 30072066 in words is "thirty million, seventy-two thousand, sixty-six".