38666306 has 16 divisors (see below), whose sum is σ = 66655680. Its totient is φ = 16478640.

The previous prime is 38666267. The next prime is 38666359. The reversal of 38666306 is 60366683.

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 38666306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5096 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (4165980).

Almost surely, 2^38666306 is an apocalyptic number.

38666306 is a deficient number, since it is larger than the sum of its proper divisors (27989374).

38666306 is a wasteful number, since it uses less digits than its factorization.

38666306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15449.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 38666306 is about 6218.2237013475. The cubic root of 38666306 is about 338.1511700811.

The spelling of 38666306 in words is "thirty-eight million, six hundred sixty-six thousand, three hundred six".