30066645 has 48 divisors (see below), whose sum is σ = 58933440. Its totient is φ = 13015296.

The previous prime is 30066643. The next prime is 30066661. The reversal of 30066645 is 54666003.

It is not a de Polignac number, because 30066645 - 2¹ = 30066643 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30066643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12889 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (1227780).

Almost surely, 2^30066645 is an apocalyptic number.

30066645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30066645 is a deficient number, since it is larger than the sum of its proper divisors (28866795).

30066645 is a wasteful number, since it uses less digits than its factorization.

30066645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 30066645 is about 5483.3060283008. The cubic root of 30066645 is about 310.9531709904.

The spelling of 30066645 in words is "thirty million, sixty-six thousand, six hundred forty-five".