30106666 has 16 divisors (see below), whose sum is σ = 45864000. Its totient is φ = 14820480.

The previous prime is 30106633. The next prime is 30106667. The reversal of 30106666 is 66660103.

It is a super-2 number, since 2×30106666² = 1812822675271112, which contains 22 as substring.

30106666 is a modest number, since divided by 6666 gives 3010 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30106667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60085 + ... + 60583.

It is an arithmetic number, because the mean of its divisors is an integer number (2866500).

Almost surely, 2^30106666 is an apocalyptic number.

30106666 is a deficient number, since it is larger than the sum of its proper divisors (15757334).

30106666 is a wasteful number, since it uses less digits than its factorization.

30106666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30106666 is about 5486.9541641971. The cubic root of 30106666 is about 311.0910772908.

Adding to 30106666 its reverse (66660103), we get a palindrome (96766769).

The spelling of 30106666 in words is "thirty million, one hundred six thousand, six hundred sixty-six".