39421166 has 4 divisors (see below), whose sum is σ = 59131752. Its totient is φ = 19710582.

The previous prime is 39421163. The next prime is 39421171. The reversal of 39421166 is 66112493.

39421166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39421163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9855290 + ... + 9855293.

It is an arithmetic number, because the mean of its divisors is an integer number (14782938).

Almost surely, 2^39421166 is an apocalyptic number.

39421166 is a deficient number, since it is larger than the sum of its proper divisors (19710586).

39421166 is a wasteful number, since it uses less digits than its factorization.

39421166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710585.

The product of its digits is 7776, while the sum is 32.

The square root of 39421166 is about 6278.6277163087. The cubic root of 39421166 is about 340.3375137477.

The spelling of 39421166 in words is "thirty-nine million, four hundred twenty-one thousand, one hundred sixty-six".