34139866 has 32 divisors (see below), whose sum is σ = 55987200. Its totient is φ = 15565440.

The previous prime is 34139857. The next prime is 34139867. The reversal of 34139866 is 66893143.

34139866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (34139867) 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 in 15 ways as a sum of consecutive naturals, for example, 126780 + ... + 127048.

It is an arithmetic number, because the mean of its divisors is an integer number (1749600).

Almost surely, 2^34139866 is an apocalyptic number.

34139866 is a deficient number, since it is larger than the sum of its proper divisors (21847334).

34139866 is a wasteful number, since it uses less digits than its factorization.

34139866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 93312, while the sum is 40.

The square root of 34139866 is about 5842.9329963641. The cubic root of 34139866 is about 324.4047993804.

The spelling of 34139866 in words is "thirty-four million, one hundred thirty-nine thousand, eight hundred sixty-six".