30210066 has 12 divisors (see below), whose sum is σ = 65455182. Its totient is φ = 10070016.

The previous prime is 30210043. The next prime is 30210127. The reversal of 30210066 is 66001203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22838841 + 7371225 = 4779^2 + 2715^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1678337 = 30210066 / (3 + 0 + 2 + 1 + 0 + 0 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 839151 + ... + 839186.

Almost surely, 2^30210066 is an apocalyptic number.

30210066 is an abundant number, since it is smaller than the sum of its proper divisors (35245116).

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

30210066 is a wasteful number, since it uses less digits than its factorization.

30210066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678345 (or 1678342 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30210066 is about 5496.3684374321. The cubic root of 30210066 is about 311.4468131527.

Adding to 30210066 its reverse (66001203), we get a palindrome (96211269).

The spelling of 30210066 in words is "thirty million, two hundred ten thousand, sixty-six".