30666196 has 48 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 13376000.

The previous prime is 30666187. The next prime is 30666197. The reversal of 30666196 is 69166603.

30666196 is a nontrivial binomial coefficient, being equal to C(7832, 2).

It is a super-2 number, since 2×30666196² = 1880831154220832, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30666197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160461 + ... + 160651.

It is an arithmetic number, because the mean of its divisors is an integer number (1270080).

Almost surely, 2^30666196 is an apocalyptic number.

30666196 is the 7831-st triangular number and also the 3916-th hexagonal number.

30666196 is the 2611-st centered nonagonal number.

It is an amenable number.

30666196 is a deficient number, since it is larger than the sum of its proper divisors (30297644).

30666196 is a wasteful number, since it uses less digits than its factorization.

30666196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 30666196 is about 5537.7067455762. The cubic root of 30666196 is about 313.0064610942.

The spelling of 30666196 in words is "thirty million, six hundred sixty-six thousand, one hundred ninety-six".