30066786 has 48 divisors (see below), whose sum is σ = 67021344. Its totient is φ = 9738432.

The previous prime is 30066767. The next prime is 30066787. The reversal of 30066786 is 68766003.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30066786.

It is not an unprimeable number, because it can be changed into a prime (30066787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128926 + ... + 129158.

It is an arithmetic number, because the mean of its divisors is an integer number (1396278).

Almost surely, 2^30066786 is an apocalyptic number.

30066786 is an abundant number, since it is smaller than the sum of its proper divisors (36954558).

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

30066786 is a wasteful number, since it uses less digits than its factorization.

30066786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30066786 is about 5483.3188854926. The cubic root of 30066786 is about 310.9536570697.

The spelling of 30066786 in words is "thirty million, sixty-six thousand, seven hundred eighty-six".